/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/Problem18_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:48:01,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:48:01,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:48:01,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:48:01,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:48:01,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:48:01,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:48:01,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:48:01,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:48:01,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:48:01,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:48:01,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:48:01,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:48:01,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:48:01,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:48:01,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:48:01,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:48:01,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:48:01,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:48:01,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:48:01,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:48:01,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:48:01,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:48:01,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:48:01,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:48:01,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:48:01,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:48:01,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:48:01,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:48:01,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:48:01,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:48:01,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:48:01,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:48:01,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:48:01,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:48:01,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:48:01,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:48:01,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:48:01,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:48:01,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:48:01,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:48:01,991 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 22:48:02,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:48:02,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:48:02,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:48:02,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:48:02,019 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:48:02,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:48:02,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:48:02,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:48:02,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:48:02,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:48:02,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:48:02,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:48:02,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:48:02,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:48:02,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:48:02,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:48:02,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:48:02,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:48:02,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:48:02,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:48:02,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:48:02,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:48:02,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:48:02,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:48:02,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:48:02,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:48:02,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:48:02,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:48:02,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:48:02,024 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 22:48:02,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:48:02,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:48:02,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:48:02,338 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:48:02,339 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:48:02,339 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label33.c [2020-10-14 22:48:02,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09662087c/13062f59ecda4f6c9aaf956bfef29d7e/FLAG2906d5b34 [2020-10-14 22:48:03,212 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:48:03,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label33.c [2020-10-14 22:48:03,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09662087c/13062f59ecda4f6c9aaf956bfef29d7e/FLAG2906d5b34 [2020-10-14 22:48:03,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09662087c/13062f59ecda4f6c9aaf956bfef29d7e [2020-10-14 22:48:03,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:48:03,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:48:03,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:48:03,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:48:03,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:48:03,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:48:03" (1/1) ... [2020-10-14 22:48:03,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207b4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:03, skipping insertion in model container [2020-10-14 22:48:03,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:48:03" (1/1) ... [2020-10-14 22:48:03,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:48:03,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:48:05,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:48:05,151 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:48:05,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:48:05,790 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:48:05,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05 WrapperNode [2020-10-14 22:48:05,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:48:05,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:48:05,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:48:05,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:48:05,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (1/1) ... [2020-10-14 22:48:05,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (1/1) ... [2020-10-14 22:48:05,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (1/1) ... [2020-10-14 22:48:05,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (1/1) ... [2020-10-14 22:48:05,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (1/1) ... [2020-10-14 22:48:06,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (1/1) ... [2020-10-14 22:48:06,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (1/1) ... [2020-10-14 22:48:06,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:48:06,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:48:06,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:48:06,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:48:06,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (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 22:48:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:48:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:48:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:48:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:48:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:48:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:48:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:48:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:48:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:48:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:48:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:48:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:48:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:48:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:48:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:48:12,198 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:48:12,199 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:48:12,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:48:12 BoogieIcfgContainer [2020-10-14 22:48:12,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:48:12,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:48:12,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:48:12,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:48:12,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:48:03" (1/3) ... [2020-10-14 22:48:12,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5ef21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:48:12, skipping insertion in model container [2020-10-14 22:48:12,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:48:05" (2/3) ... [2020-10-14 22:48:12,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5ef21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:48:12, skipping insertion in model container [2020-10-14 22:48:12,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:48:12" (3/3) ... [2020-10-14 22:48:12,219 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label33.c [2020-10-14 22:48:12,231 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:48:12,240 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:48:12,255 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:48:12,288 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:48:12,288 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:48:12,288 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:48:12,288 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:48:12,288 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:48:12,289 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:48:12,289 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:48:12,289 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:48:12,330 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:48:12,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-14 22:48:12,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:12,340 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] [2020-10-14 22:48:12,341 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:12,348 INFO L82 PathProgramCache]: Analyzing trace with hash -666712142, now seen corresponding path program 1 times [2020-10-14 22:48:12,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:12,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825675528] [2020-10-14 22:48:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:12,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:12,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:12,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 22:48:12,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:12,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-14 22:48:12,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:12,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 22:48:12,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:48:12,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:12,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:12,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:12,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:12,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:12,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:48:12,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:12,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:12,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:12,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:12,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:12,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:12,963 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 22:48:12,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825675528] [2020-10-14 22:48:12,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:48:12,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:48:12,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729931443] [2020-10-14 22:48:12,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:48:12,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:12,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:48:12,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:48:12,992 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:48:22,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:22,927 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:48:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:48:22,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-14 22:48:22,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:22,963 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:48:22,963 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:48:22,976 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 22:48:23,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:48:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:48:23,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:48:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-14 22:48:23,174 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 29 [2020-10-14 22:48:23,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:23,174 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-14 22:48:23,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:48:23,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-14 22:48:23,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-14 22:48:23,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:23,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:23,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:48:23,182 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:23,183 INFO L82 PathProgramCache]: Analyzing trace with hash 931351542, now seen corresponding path program 1 times [2020-10-14 22:48:23,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:23,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976175124] [2020-10-14 22:48:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:23,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:23,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:24,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:24,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 22:48:24,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:48:24,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-10-14 22:48:24,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:24,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:48:24,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:48:24,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:24,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:24,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:24,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:48:24,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:24,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:24,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:24,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:24,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:24,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:24,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:24,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:24,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:48:24,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:24,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:48:24,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:24,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:48:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:48:24,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976175124] [2020-10-14 22:48:24,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:48:24,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:48:24,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810458245] [2020-10-14 22:48:24,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:24,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:24,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:24,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:24,403 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-14 22:48:35,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:35,580 INFO L93 Difference]: Finished difference Result 4326 states and 6788 transitions. [2020-10-14 22:48:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:48:35,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2020-10-14 22:48:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:35,608 INFO L225 Difference]: With dead ends: 4326 [2020-10-14 22:48:35,609 INFO L226 Difference]: Without dead ends: 2907 [2020-10-14 22:48:35,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:48:35,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2020-10-14 22:48:35,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2866. [2020-10-14 22:48:35,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2866 states. [2020-10-14 22:48:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 3950 transitions. [2020-10-14 22:48:35,731 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 3950 transitions. Word has length 99 [2020-10-14 22:48:35,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:35,732 INFO L479 AbstractCegarLoop]: Abstraction has 2866 states and 3950 transitions. [2020-10-14 22:48:35,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:35,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 3950 transitions. [2020-10-14 22:48:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 22:48:35,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:35,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:35,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:48:35,737 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:35,737 INFO L82 PathProgramCache]: Analyzing trace with hash 644649167, now seen corresponding path program 1 times [2020-10-14 22:48:35,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:35,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885728775] [2020-10-14 22:48:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:35,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:35,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:36,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:36,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:48:36,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:48:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-10-14 22:48:36,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:36,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:48:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:36,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:36,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:36,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:36,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:48:36,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:36,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:36,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:36,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:36,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:37,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:37,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:48:37,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 22:48:37,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:37,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:48:37,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:48:37,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885728775] [2020-10-14 22:48:37,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:48:37,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:48:37,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145858908] [2020-10-14 22:48:37,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:37,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:37,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:37,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:37,293 INFO L87 Difference]: Start difference. First operand 2866 states and 3950 transitions. Second operand 7 states. [2020-10-14 22:48:48,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:48,715 INFO L93 Difference]: Finished difference Result 6551 states and 8871 transitions. [2020-10-14 22:48:48,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:48:48,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2020-10-14 22:48:48,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:48,741 INFO L225 Difference]: With dead ends: 6551 [2020-10-14 22:48:48,741 INFO L226 Difference]: Without dead ends: 3691 [2020-10-14 22:48:48,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:48:48,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2020-10-14 22:48:48,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3593. [2020-10-14 22:48:48,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2020-10-14 22:48:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 4720 transitions. [2020-10-14 22:48:48,884 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 4720 transitions. Word has length 126 [2020-10-14 22:48:48,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:48,885 INFO L479 AbstractCegarLoop]: Abstraction has 3593 states and 4720 transitions. [2020-10-14 22:48:48,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:48,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 4720 transitions. [2020-10-14 22:48:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-14 22:48:48,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:48,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:48,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:48:48,898 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:48,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:48,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1702822702, now seen corresponding path program 1 times [2020-10-14 22:48:48,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:48,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747730112] [2020-10-14 22:48:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:48,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:49,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:49,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:48:49,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:48:49,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-10-14 22:48:49,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:49,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:49,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 22:48:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 22:48:50,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:50,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:50,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:50,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:50,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:48:50,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:50,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:50,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:50,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:50,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:50,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:48:50,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:50,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 22:48:50,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:50,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 22:48:50,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:48:50,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747730112] [2020-10-14 22:48:50,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:48:50,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:48:50,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861819880] [2020-10-14 22:48:50,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:50,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:50,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:50,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:50,523 INFO L87 Difference]: Start difference. First operand 3593 states and 4720 transitions. Second operand 7 states. [2020-10-14 22:48:59,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:59,573 INFO L93 Difference]: Finished difference Result 8037 states and 11182 transitions. [2020-10-14 22:48:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:48:59,579 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-10-14 22:48:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:59,601 INFO L225 Difference]: With dead ends: 8037 [2020-10-14 22:48:59,601 INFO L226 Difference]: Without dead ends: 5152 [2020-10-14 22:48:59,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:48:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2020-10-14 22:48:59,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5042. [2020-10-14 22:48:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5042 states. [2020-10-14 22:48:59,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5042 states to 5042 states and 6137 transitions. [2020-10-14 22:48:59,725 INFO L78 Accepts]: Start accepts. Automaton has 5042 states and 6137 transitions. Word has length 161 [2020-10-14 22:48:59,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:59,726 INFO L479 AbstractCegarLoop]: Abstraction has 5042 states and 6137 transitions. [2020-10-14 22:48:59,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:59,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5042 states and 6137 transitions. [2020-10-14 22:48:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 22:48:59,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:59,731 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:48:59,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:48:59,732 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:59,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:59,732 INFO L82 PathProgramCache]: Analyzing trace with hash 937664227, now seen corresponding path program 1 times [2020-10-14 22:48:59,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:59,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280078756] [2020-10-14 22:48:59,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:59,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:01,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:01,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-14 22:49:01,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:49:01,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1848 [2020-10-14 22:49:01,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:01,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:49:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:49:01,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:01,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:01,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:01,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:01,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:01,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:01,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:49:01,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:01,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:01,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:01,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:01,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:02,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:02,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:49:02,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:02,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 22:49:02,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:02,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:49:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 22:49:02,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:49:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:02,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:02,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:49:02,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 22:49:02,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:02,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:49:02,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:49:02,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280078756] [2020-10-14 22:49:02,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:02,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:49:02,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374888574] [2020-10-14 22:49:02,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:49:02,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:02,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:49:02,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:49:02,617 INFO L87 Difference]: Start difference. First operand 5042 states and 6137 transitions. Second operand 8 states. [2020-10-14 22:49:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:22,432 INFO L93 Difference]: Finished difference Result 13875 states and 18097 transitions. [2020-10-14 22:49:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 22:49:22,434 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 312 [2020-10-14 22:49:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:22,466 INFO L225 Difference]: With dead ends: 13875 [2020-10-14 22:49:22,466 INFO L226 Difference]: Without dead ends: 8057 [2020-10-14 22:49:22,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-10-14 22:49:22,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8057 states. [2020-10-14 22:49:22,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 7296. [2020-10-14 22:49:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2020-10-14 22:49:22,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 8080 transitions. [2020-10-14 22:49:22,642 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 8080 transitions. Word has length 312 [2020-10-14 22:49:22,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:22,643 INFO L479 AbstractCegarLoop]: Abstraction has 7296 states and 8080 transitions. [2020-10-14 22:49:22,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:49:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 8080 transitions. [2020-10-14 22:49:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2020-10-14 22:49:22,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:22,660 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:22,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:49:22,661 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:22,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:22,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1789237479, now seen corresponding path program 1 times [2020-10-14 22:49:22,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:22,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690252040] [2020-10-14 22:49:22,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:22,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:27,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:27,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 694 [2020-10-14 22:49:27,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:49:27,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-14 22:49:27,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:27,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 22:49:27,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:49:27,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 661 [2020-10-14 22:49:27,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:28,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:28,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:28,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:28,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:28,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:28,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:49:28,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:28,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:49:28,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:28,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:28,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:29,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:29,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:29,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:29,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1311 [2020-10-14 22:49:29,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:29,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:29,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:49:29,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 532 [2020-10-14 22:49:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:29,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:29,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:30,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:30,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:30,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-14 22:49:30,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:30,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:49:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 22:49:30,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:30,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:30,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:30,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:30,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:30,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:30,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:49:30,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:30,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:30,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 22:49:30,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:31,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:31,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:32,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:32,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:49:32,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 22:49:32,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:32,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:49:32,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:33,387 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 22:49:33,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690252040] [2020-10-14 22:49:33,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:33,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:49:33,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490421764] [2020-10-14 22:49:33,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:33,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:33,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:33,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:33,391 INFO L87 Difference]: Start difference. First operand 7296 states and 8080 transitions. Second operand 7 states. [2020-10-14 22:49:44,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:44,806 INFO L93 Difference]: Finished difference Result 17606 states and 20112 transitions. [2020-10-14 22:49:44,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:49:44,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 678 [2020-10-14 22:49:44,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:44,866 INFO L225 Difference]: With dead ends: 17606 [2020-10-14 22:49:44,866 INFO L226 Difference]: Without dead ends: 11728 [2020-10-14 22:49:44,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:49:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2020-10-14 22:49:45,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 10945. [2020-10-14 22:49:45,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10945 states. [2020-10-14 22:49:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10945 states to 10945 states and 12012 transitions. [2020-10-14 22:49:45,100 INFO L78 Accepts]: Start accepts. Automaton has 10945 states and 12012 transitions. Word has length 678 [2020-10-14 22:49:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:45,102 INFO L479 AbstractCegarLoop]: Abstraction has 10945 states and 12012 transitions. [2020-10-14 22:49:45,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:49:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10945 states and 12012 transitions. [2020-10-14 22:49:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2020-10-14 22:49:45,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:45,164 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:45,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:49:45,165 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:45,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:45,165 INFO L82 PathProgramCache]: Analyzing trace with hash 310905448, now seen corresponding path program 1 times [2020-10-14 22:49:45,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:45,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886474752] [2020-10-14 22:49:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:45,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:45,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:50,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:50,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 973 [2020-10-14 22:49:50,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:49:50,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4800 [2020-10-14 22:49:50,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:50,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:49:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:49:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:50,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:50,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:50,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:50,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:50,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:50,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:49:50,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:50,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:49:50,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:50,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:50,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:50,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:49:50,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:50,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:50,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:50,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:50,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:50,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:50,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:50,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:50,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:49:50,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:50,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:50,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:50,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:50,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:51,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:51,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:51,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:51,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:49:51,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:51,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:51,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:51,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:51,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:51,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:51,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:51,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:51,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:51,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:51,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:51,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 22:49:51,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:51,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:49:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:51,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:51,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:51,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:51,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:49:51,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:51,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:49:51,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:49:51,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:49:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:51,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:51,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:51,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:49:51,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:49:51,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:51,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:51,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:51,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:51,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:49:51,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:49:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:49:52,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886474752] [2020-10-14 22:49:52,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:52,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:49:52,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451209308] [2020-10-14 22:49:52,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:52,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:52,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:52,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:52,356 INFO L87 Difference]: Start difference. First operand 10945 states and 12012 transitions. Second operand 7 states. [2020-10-14 22:50:00,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:00,702 INFO L93 Difference]: Finished difference Result 26409 states and 29819 transitions. [2020-10-14 22:50:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:50:00,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 953 [2020-10-14 22:50:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:00,770 INFO L225 Difference]: With dead ends: 26409 [2020-10-14 22:50:00,771 INFO L226 Difference]: Without dead ends: 16882 [2020-10-14 22:50:00,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:50:00,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16882 states. [2020-10-14 22:50:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16882 to 16791. [2020-10-14 22:50:01,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-10-14 22:50:01,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 18620 transitions. [2020-10-14 22:50:01,192 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 18620 transitions. Word has length 953 [2020-10-14 22:50:01,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:01,194 INFO L479 AbstractCegarLoop]: Abstraction has 16791 states and 18620 transitions. [2020-10-14 22:50:01,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:01,194 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 18620 transitions. [2020-10-14 22:50:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2020-10-14 22:50:01,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:01,213 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:01,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:50:01,214 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:01,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1479142161, now seen corresponding path program 1 times [2020-10-14 22:50:01,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:01,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614175433] [2020-10-14 22:50:01,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:01,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:01,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:06,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:06,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1072 [2020-10-14 22:50:06,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:50:06,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 22:50:06,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:06,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:50:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:50:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:06,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:06,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:06,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:06,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:06,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:06,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:06,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:06,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:50:06,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:06,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:06,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:06,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:06,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:06,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:50:06,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:06,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:06,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:06,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:06,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:07,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:07,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:07,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 22:50:07,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:07,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:07,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:07,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:07,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:07,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:07,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:07,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:50:07,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:07,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:07,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:07,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:07,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:07,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:07,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:50:07,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:07,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:50:07,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:07,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:07,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:07,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:07,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:07,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:07,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:07,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:07,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:50:07,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:50:07,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:07,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:07,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:50:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:07,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:08,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:08,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:50:08,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:50:08,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:08,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:50:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:08,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:50:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:08,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:08,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:08,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:50:08,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:08,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:50:08,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:08,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:50:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-14 22:50:09,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614175433] [2020-10-14 22:50:09,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:09,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:50:09,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200195216] [2020-10-14 22:50:09,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:09,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:09,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:09,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:09,381 INFO L87 Difference]: Start difference. First operand 16791 states and 18620 transitions. Second operand 7 states. [2020-10-14 22:50:18,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:18,424 INFO L93 Difference]: Finished difference Result 40216 states and 45752 transitions. [2020-10-14 22:50:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:50:18,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1050 [2020-10-14 22:50:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:18,511 INFO L225 Difference]: With dead ends: 40216 [2020-10-14 22:50:18,512 INFO L226 Difference]: Without dead ends: 24843 [2020-10-14 22:50:18,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:50:18,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24843 states. [2020-10-14 22:50:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24843 to 24796. [2020-10-14 22:50:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24796 states. [2020-10-14 22:50:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24796 states to 24796 states and 27576 transitions. [2020-10-14 22:50:19,091 INFO L78 Accepts]: Start accepts. Automaton has 24796 states and 27576 transitions. Word has length 1050 [2020-10-14 22:50:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:19,094 INFO L479 AbstractCegarLoop]: Abstraction has 24796 states and 27576 transitions. [2020-10-14 22:50:19,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 24796 states and 27576 transitions. [2020-10-14 22:50:19,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2020-10-14 22:50:19,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:19,113 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:19,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:50:19,113 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:19,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:19,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1651628708, now seen corresponding path program 1 times [2020-10-14 22:50:19,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:19,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727348769] [2020-10-14 22:50:19,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:19,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:20,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:20,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1139 [2020-10-14 22:50:20,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1376 [2020-10-14 22:50:20,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:20,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:50:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 22:50:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:20,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:20,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:20,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:20,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:20,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:20,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:20,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:20,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:21,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:21,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:21,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:21,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:50:21,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:21,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:21,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:21,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:21,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:21,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:21,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:21,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:21,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:21,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:50:21,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:21,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:21,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:21,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:21,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:21,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:21,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:50:21,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:21,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:21,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:21,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:21,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:50:21,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:21,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:50:21,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:21,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:21,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:21,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:21,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:50:21,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:21,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:50:21,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:21,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:21,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:21,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:50:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:21,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:21,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:50:21,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:21,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:50:21,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:21,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:50:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:21,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:21,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:50:21,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:50:21,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:21,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:50:21,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 93 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-14 22:50:22,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727348769] [2020-10-14 22:50:22,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:22,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:50:22,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950248595] [2020-10-14 22:50:22,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:50:22,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:22,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:50:22,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:50:22,460 INFO L87 Difference]: Start difference. First operand 24796 states and 27576 transitions. Second operand 5 states. [2020-10-14 22:50:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:30,168 INFO L93 Difference]: Finished difference Result 53852 states and 61154 transitions. [2020-10-14 22:50:30,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:50:30,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1117 [2020-10-14 22:50:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:30,253 INFO L225 Difference]: With dead ends: 53852 [2020-10-14 22:50:30,253 INFO L226 Difference]: Without dead ends: 30474 [2020-10-14 22:50:30,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:50:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30474 states. [2020-10-14 22:50:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30474 to 30458. [2020-10-14 22:50:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30458 states. [2020-10-14 22:50:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30458 states to 30458 states and 33683 transitions. [2020-10-14 22:50:30,771 INFO L78 Accepts]: Start accepts. Automaton has 30458 states and 33683 transitions. Word has length 1117 [2020-10-14 22:50:30,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:30,772 INFO L479 AbstractCegarLoop]: Abstraction has 30458 states and 33683 transitions. [2020-10-14 22:50:30,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:50:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 30458 states and 33683 transitions. [2020-10-14 22:50:30,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2020-10-14 22:50:30,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:30,794 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:30,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:50:30,795 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:30,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:30,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1141031083, now seen corresponding path program 1 times [2020-10-14 22:50:30,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:30,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975696086] [2020-10-14 22:50:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:31,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:31,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:33,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:33,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:36,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:36,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1171 [2020-10-14 22:50:36,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:50:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 22:50:36,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:36,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:36,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-14 22:50:36,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:50:36,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:36,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:36,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:36,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:36,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:36,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:36,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:36,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:36,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:36,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:36,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:36,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:36,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:36,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:36,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 22:50:36,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:36,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:36,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:36,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:36,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:36,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:36,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:50:36,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:36,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:36,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:36,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:36,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:36,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:36,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:36,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:36,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:50:36,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:36,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:36,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:36,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:36,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:50:36,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:36,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 22:50:36,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:36,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-14 22:50:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:36,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:36,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:36,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:36,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:50:36,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:36,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:50:36,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:36,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:36,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 22:50:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:37,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:50:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:37,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:37,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:37,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:50:37,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:37,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:50:37,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:37,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:50:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:37,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:50:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:37,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:37,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:37,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:37,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1052 [2020-10-14 22:50:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:37,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:37,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:37,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:50:37,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:50:37,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:37,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:37,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:50:37,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:37,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 372 proven. 151 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-14 22:50:37,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975696086] [2020-10-14 22:50:37,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:37,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:50:37,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900103903] [2020-10-14 22:50:37,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:37,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:37,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:37,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:37,976 INFO L87 Difference]: Start difference. First operand 30458 states and 33683 transitions. Second operand 7 states. [2020-10-14 22:50:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:51,238 INFO L93 Difference]: Finished difference Result 70276 states and 78048 transitions. [2020-10-14 22:50:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:50:51,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1147 [2020-10-14 22:50:51,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:51,338 INFO L225 Difference]: With dead ends: 70276 [2020-10-14 22:50:51,338 INFO L226 Difference]: Without dead ends: 41236 [2020-10-14 22:50:51,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:50:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41236 states. [2020-10-14 22:50:51,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41236 to 41154. [2020-10-14 22:50:51,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41154 states. [2020-10-14 22:50:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41154 states to 41154 states and 45151 transitions. [2020-10-14 22:50:51,997 INFO L78 Accepts]: Start accepts. Automaton has 41154 states and 45151 transitions. Word has length 1147 [2020-10-14 22:50:51,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:51,998 INFO L479 AbstractCegarLoop]: Abstraction has 41154 states and 45151 transitions. [2020-10-14 22:50:51,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:51,998 INFO L276 IsEmpty]: Start isEmpty. Operand 41154 states and 45151 transitions. [2020-10-14 22:50:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2020-10-14 22:50:52,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:52,019 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:52,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:50:52,020 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:52,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:52,021 INFO L82 PathProgramCache]: Analyzing trace with hash 369431559, now seen corresponding path program 1 times [2020-10-14 22:50:52,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:52,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484311871] [2020-10-14 22:50:52,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:52,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:52,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:54,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1185 [2020-10-14 22:50:57,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:50:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:50:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 937 [2020-10-14 22:50:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 22:50:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:57,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:57,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:57,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:57,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:57,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:50:57,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:57,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:57,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:57,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:50:57,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:57,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:57,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:50:57,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:57,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:57,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:57,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:57,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:50:57,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:50:57,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:57,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:57,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:50:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:50:57,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:50:57,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:50:57,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:57,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 925 [2020-10-14 22:50:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:57,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:57,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:57,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:50:57,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:57,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:50:57,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:57,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:50:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:58,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2020-10-14 22:50:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:58,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:58,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:58,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 22:50:58,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:50:58,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:58,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 22:50:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 379 proven. 89 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2020-10-14 22:50:58,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484311871] [2020-10-14 22:50:58,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:58,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:50:58,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452060671] [2020-10-14 22:50:58,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:58,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:58,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:58,712 INFO L87 Difference]: Start difference. First operand 41154 states and 45151 transitions. Second operand 7 states. [2020-10-14 22:51:12,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:51:12,548 INFO L93 Difference]: Finished difference Result 88827 states and 98848 transitions. [2020-10-14 22:51:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:51:12,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1161 [2020-10-14 22:51:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:51:12,643 INFO L225 Difference]: With dead ends: 88827 [2020-10-14 22:51:12,643 INFO L226 Difference]: Without dead ends: 49091 [2020-10-14 22:51:12,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:51:12,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49091 states. [2020-10-14 22:51:13,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49091 to 49009. [2020-10-14 22:51:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49009 states. [2020-10-14 22:51:13,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49009 states to 49009 states and 53697 transitions. [2020-10-14 22:51:13,290 INFO L78 Accepts]: Start accepts. Automaton has 49009 states and 53697 transitions. Word has length 1161 [2020-10-14 22:51:13,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:51:13,290 INFO L479 AbstractCegarLoop]: Abstraction has 49009 states and 53697 transitions. [2020-10-14 22:51:13,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:51:13,291 INFO L276 IsEmpty]: Start isEmpty. Operand 49009 states and 53697 transitions. [2020-10-14 22:51:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2020-10-14 22:51:13,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:51:13,313 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:13,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:51:13,314 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:51:13,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:51:13,314 INFO L82 PathProgramCache]: Analyzing trace with hash 636078079, now seen corresponding path program 1 times [2020-10-14 22:51:13,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:51:13,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937166265] [2020-10-14 22:51:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:51:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:13,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:13,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:17,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:17,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1243 [2020-10-14 22:51:17,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:51:17,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3644 [2020-10-14 22:51:17,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:17,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:51:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-14 22:51:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:51:17,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:17,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:51:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:17,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:17,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:17,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:51:17,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:17,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:51:17,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:17,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:17,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:17,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:51:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:17,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:17,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:17,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:51:17,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:17,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:51:17,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:17,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:17,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:17,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:51:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:17,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:17,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:17,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:51:17,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:51:17,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:17,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:17,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:17,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:51:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:17,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:17,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:51:17,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:17,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:51:17,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:17,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:17,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:51:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:17,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:17,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:17,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-14 22:51:17,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:17,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:51:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:17,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:17,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:51:17,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:17,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:51:17,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:17,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:51:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 22:51:17,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:18,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:51:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:18,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:18,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:18,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:51:18,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:18,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:51:18,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:18,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:18,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:51:18,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:51:18,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:51:18,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:18,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 925 [2020-10-14 22:51:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:18,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:18,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:18,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-14 22:51:18,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:18,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:51:18,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:18,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:18,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 273 [2020-10-14 22:51:18,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:18,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 250 proven. 75 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2020-10-14 22:51:18,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937166265] [2020-10-14 22:51:18,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:51:18,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:51:18,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289419032] [2020-10-14 22:51:18,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:51:18,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:51:18,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:51:18,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:51:18,788 INFO L87 Difference]: Start difference. First operand 49009 states and 53697 transitions. Second operand 7 states. [2020-10-14 22:51:37,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:51:37,926 INFO L93 Difference]: Finished difference Result 108740 states and 120771 transitions. [2020-10-14 22:51:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:51:37,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1221 [2020-10-14 22:51:37,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:51:38,036 INFO L225 Difference]: With dead ends: 108740 [2020-10-14 22:51:38,036 INFO L226 Difference]: Without dead ends: 61149 [2020-10-14 22:51:38,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 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 22:51:38,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61149 states. [2020-10-14 22:51:38,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61149 to 60395. [2020-10-14 22:51:38,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60395 states. [2020-10-14 22:51:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60395 states to 60395 states and 66838 transitions. [2020-10-14 22:51:38,875 INFO L78 Accepts]: Start accepts. Automaton has 60395 states and 66838 transitions. Word has length 1221 [2020-10-14 22:51:38,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:51:38,876 INFO L479 AbstractCegarLoop]: Abstraction has 60395 states and 66838 transitions. [2020-10-14 22:51:38,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:51:38,877 INFO L276 IsEmpty]: Start isEmpty. Operand 60395 states and 66838 transitions. [2020-10-14 22:51:38,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2020-10-14 22:51:38,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:51:38,911 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:38,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:51:38,912 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:51:38,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:51:38,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1238197792, now seen corresponding path program 1 times [2020-10-14 22:51:38,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:51:38,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23070379] [2020-10-14 22:51:38,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:51:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:39,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:39,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:41,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:42,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:42,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:44,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:44,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1309 [2020-10-14 22:51:44,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:51:44,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 22:51:44,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:44,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:51:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1121 [2020-10-14 22:51:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 22:51:44,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:44,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:51:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:44,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:44,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:44,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:44,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:44,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:51:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:44,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:44,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:44,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:51:44,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:44,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:51:44,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:44,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:44,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:44,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:44,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:51:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:44,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:44,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:44,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:51:44,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:44,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:51:44,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:44,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:44,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:44,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:51:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:44,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:51:44,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:51:44,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:44,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:51:44,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:51:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:44,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:44,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:44,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:51:44,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:44,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:51:44,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:44,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0