/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_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:54:19,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:54:19,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:54:19,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:54:19,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:54:19,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:54:19,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:54:19,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:54:19,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:54:19,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:54:19,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:54:19,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:54:19,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:54:19,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:54:19,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:54:19,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:54:19,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:54:19,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:54:19,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:54:19,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:54:19,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:54:19,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:54:19,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:54:19,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:54:19,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:54:19,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:54:19,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:54:19,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:54:19,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:54:19,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:54:19,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:54:19,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:54:19,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:54:19,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:54:19,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:54:19,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:54:19,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:54:19,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:54:19,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:54:19,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:54:19,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:54:19,945 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 22:54:19,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:54:19,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:54:19,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:54:19,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:54:19,971 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:54:19,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:54:19,972 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:54:19,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:54:19,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:54:19,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:54:19,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:54:19,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:54:19,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:54:19,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:54:19,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:54:19,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:54:19,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:54:19,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:54:19,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:54:19,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:54:19,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:54:19,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:54:19,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:54:19,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:54:19,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:54:19,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:54:19,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:54:19,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:54:19,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:54:19,979 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 22:54:20,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:54:20,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:54:20,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:54:20,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:54:20,326 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:54:20,327 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label54.c [2020-10-14 22:54:20,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c209dfea/f41a80540a51479fbc85ba25b973cb00/FLAG0f7164298 [2020-10-14 22:54:21,190 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:54:21,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label54.c [2020-10-14 22:54:21,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c209dfea/f41a80540a51479fbc85ba25b973cb00/FLAG0f7164298 [2020-10-14 22:54:21,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c209dfea/f41a80540a51479fbc85ba25b973cb00 [2020-10-14 22:54:21,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:54:21,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:54:21,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:54:21,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:54:21,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:54:21,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:54:21" (1/1) ... [2020-10-14 22:54:21,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183cfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:21, skipping insertion in model container [2020-10-14 22:54:21,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:54:21" (1/1) ... [2020-10-14 22:54:21,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:54:21,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:54:22,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:54:22,722 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:54:23,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:54:23,231 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:54:23,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23 WrapperNode [2020-10-14 22:54:23,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:54:23,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:54:23,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:54:23,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:54:23,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (1/1) ... [2020-10-14 22:54:23,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (1/1) ... [2020-10-14 22:54:23,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (1/1) ... [2020-10-14 22:54:23,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (1/1) ... [2020-10-14 22:54:23,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (1/1) ... [2020-10-14 22:54:23,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (1/1) ... [2020-10-14 22:54:23,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (1/1) ... [2020-10-14 22:54:23,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:54:23,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:54:23,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:54:23,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:54:23,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (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 22:54:23,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:54:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:54:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:54:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:54:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:54:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:54:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:54:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:54:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:54:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:54:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:54:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:54:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:54:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:54:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:54:30,010 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:54:30,010 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:54:30,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:54:30 BoogieIcfgContainer [2020-10-14 22:54:30,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:54:30,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:54:30,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:54:30,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:54:30,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:54:21" (1/3) ... [2020-10-14 22:54:30,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78074dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:54:30, skipping insertion in model container [2020-10-14 22:54:30,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:23" (2/3) ... [2020-10-14 22:54:30,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78074dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:54:30, skipping insertion in model container [2020-10-14 22:54:30,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:54:30" (3/3) ... [2020-10-14 22:54:30,031 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label54.c [2020-10-14 22:54:30,042 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:54:30,051 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:54:30,065 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:54:30,092 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:54:30,093 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:54:30,093 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:54:30,093 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:54:30,093 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:54:30,093 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:54:30,093 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:54:30,093 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:54:30,128 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:54:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 22:54:30,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:30,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:54:30,142 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:30,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:30,147 INFO L82 PathProgramCache]: Analyzing trace with hash 466768385, now seen corresponding path program 1 times [2020-10-14 22:54:30,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:30,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770981733] [2020-10-14 22:54:30,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:30,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:30,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:30,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 22:54:30,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:30,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 22:54:30,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:30,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:30,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:30,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:30,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 22:54:30,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:54:30,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:30,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:30,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:30,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:30,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:30,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:54:30,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:30,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:30,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:54:30,878 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 22:54:30,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770981733] [2020-10-14 22:54:30,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:54:30,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:54:30,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619797463] [2020-10-14 22:54:30,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:54:30,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:30,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:54:30,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:54:30,908 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:54:41,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:41,472 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:54:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:54:41,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-14 22:54:41,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:41,505 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:54:41,505 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:54:41,514 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 22:54:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:54:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:54:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:54:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-14 22:54:41,663 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 40 [2020-10-14 22:54:41,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:41,665 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-14 22:54:41,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:54:41,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-14 22:54:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 22:54:41,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:41,674 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:54:41,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:54:41,674 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:41,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1278365916, now seen corresponding path program 1 times [2020-10-14 22:54:41,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:41,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329814388] [2020-10-14 22:54:41,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:41,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:41,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:42,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 22:54:42,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:54:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-10-14 22:54:42,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:42,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:42,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:42,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:42,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:54:42,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:42,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:42,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:42,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:42,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:42,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:42,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:54:42,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:42,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:42,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:42,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:42,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:42,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:42,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:42,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:42,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:54:42,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:42,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 22:54:42,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:42,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:42,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:42,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:54:42,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:54:42,999 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:54:43,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329814388] [2020-10-14 22:54:43,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:54:43,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:54:43,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9443074] [2020-10-14 22:54:43,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:43,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:43,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:43,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:43,006 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 7 states. [2020-10-14 22:54:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:52,961 INFO L93 Difference]: Finished difference Result 4326 states and 7112 transitions. [2020-10-14 22:54:52,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:54:52,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-14 22:54:52,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:52,978 INFO L225 Difference]: With dead ends: 4326 [2020-10-14 22:54:52,979 INFO L226 Difference]: Without dead ends: 2907 [2020-10-14 22:54:52,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:54:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2020-10-14 22:54:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2872. [2020-10-14 22:54:53,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2872 states. [2020-10-14 22:54:53,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 4028 transitions. [2020-10-14 22:54:53,152 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 4028 transitions. Word has length 110 [2020-10-14 22:54:53,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:53,154 INFO L479 AbstractCegarLoop]: Abstraction has 2872 states and 4028 transitions. [2020-10-14 22:54:53,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:54:53,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 4028 transitions. [2020-10-14 22:54:53,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-14 22:54:53,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:53,164 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:53,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:54:53,164 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:53,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:53,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1404999961, now seen corresponding path program 1 times [2020-10-14 22:54:53,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:53,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875407537] [2020-10-14 22:54:53,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 22:54:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:54:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-14 22:54:53,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:53,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:54:53,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:53,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:53,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:53,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:54:53,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:53,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:53,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:54:54,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:54:54,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:54:54,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:54:54,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875407537] [2020-10-14 22:54:54,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:54:54,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:54:54,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010726769] [2020-10-14 22:54:54,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:54,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:54,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:54,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:54,173 INFO L87 Difference]: Start difference. First operand 2872 states and 4028 transitions. Second operand 7 states. [2020-10-14 22:55:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:03,315 INFO L93 Difference]: Finished difference Result 7306 states and 10312 transitions. [2020-10-14 22:55:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:55:03,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2020-10-14 22:55:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:03,343 INFO L225 Difference]: With dead ends: 7306 [2020-10-14 22:55:03,343 INFO L226 Difference]: Without dead ends: 4440 [2020-10-14 22:55:03,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:55:03,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4440 states. [2020-10-14 22:55:03,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4440 to 4364. [2020-10-14 22:55:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4364 states. [2020-10-14 22:55:03,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 5821 transitions. [2020-10-14 22:55:03,508 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 5821 transitions. Word has length 111 [2020-10-14 22:55:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:03,508 INFO L479 AbstractCegarLoop]: Abstraction has 4364 states and 5821 transitions. [2020-10-14 22:55:03,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 5821 transitions. [2020-10-14 22:55:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-14 22:55:03,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:03,511 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:03,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:55:03,511 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:03,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:03,512 INFO L82 PathProgramCache]: Analyzing trace with hash 90440645, now seen corresponding path program 1 times [2020-10-14 22:55:03,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:03,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267754871] [2020-10-14 22:55:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:03,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:03,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:04,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:04,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 22:55:04,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:55:04,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-14 22:55:04,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:04,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:04,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:55:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:55:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:55:04,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:55:05,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:05,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:05,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:05,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:05,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:55:05,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:05,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:55:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:05,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:05,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:05,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:55:05,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:05,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 22:55:05,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:05,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:55:05,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:55:05,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267754871] [2020-10-14 22:55:05,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:55:05,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:55:05,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037193899] [2020-10-14 22:55:05,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:05,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:05,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:05,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:05,410 INFO L87 Difference]: Start difference. First operand 4364 states and 5821 transitions. Second operand 7 states. [2020-10-14 22:55:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:16,602 INFO L93 Difference]: Finished difference Result 11747 states and 15901 transitions. [2020-10-14 22:55:16,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:55:16,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-10-14 22:55:16,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:16,634 INFO L225 Difference]: With dead ends: 11747 [2020-10-14 22:55:16,634 INFO L226 Difference]: Without dead ends: 7389 [2020-10-14 22:55:16,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:55:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7389 states. [2020-10-14 22:55:16,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7389 to 6615. [2020-10-14 22:55:16,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6615 states. [2020-10-14 22:55:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 8377 transitions. [2020-10-14 22:55:16,803 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 8377 transitions. Word has length 137 [2020-10-14 22:55:16,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:16,804 INFO L479 AbstractCegarLoop]: Abstraction has 6615 states and 8377 transitions. [2020-10-14 22:55:16,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:16,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 8377 transitions. [2020-10-14 22:55:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-14 22:55:16,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:16,808 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:16,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:55:16,808 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:16,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:16,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1671945420, now seen corresponding path program 1 times [2020-10-14 22:55:16,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:16,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949732285] [2020-10-14 22:55:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:16,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:17,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:17,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-14 22:55:17,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:55:17,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-10-14 22:55:17,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:17,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:55:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:55:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 230 [2020-10-14 22:55:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:17,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:17,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:17,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:17,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:17,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:17,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:55:17,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:17,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:55:17,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:17,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:18,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:55:18,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 22:55:18,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:18,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:18,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-14 22:55:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:55:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:55:18,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949732285] [2020-10-14 22:55:18,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:18,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:55:18,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435979620] [2020-10-14 22:55:18,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:55:18,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:18,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:55:18,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:55:18,349 INFO L87 Difference]: Start difference. First operand 6615 states and 8377 transitions. Second operand 6 states. [2020-10-14 22:55:30,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:30,868 INFO L93 Difference]: Finished difference Result 17740 states and 23140 transitions. [2020-10-14 22:55:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:55:30,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2020-10-14 22:55:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:30,915 INFO L225 Difference]: With dead ends: 17740 [2020-10-14 22:55:30,915 INFO L226 Difference]: Without dead ends: 11131 [2020-10-14 22:55:30,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:55:30,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11131 states. [2020-10-14 22:55:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11131 to 10312. [2020-10-14 22:55:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10312 states. [2020-10-14 22:55:31,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10312 states to 10312 states and 12696 transitions. [2020-10-14 22:55:31,169 INFO L78 Accepts]: Start accepts. Automaton has 10312 states and 12696 transitions. Word has length 226 [2020-10-14 22:55:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:31,170 INFO L479 AbstractCegarLoop]: Abstraction has 10312 states and 12696 transitions. [2020-10-14 22:55:31,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:55:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 10312 states and 12696 transitions. [2020-10-14 22:55:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-10-14 22:55:31,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:31,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:31,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:55:31,182 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:31,183 INFO L82 PathProgramCache]: Analyzing trace with hash -268365553, now seen corresponding path program 1 times [2020-10-14 22:55:31,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:31,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468002244] [2020-10-14 22:55:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:31,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:32,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:34,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:34,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 22:55:34,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:55:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3574 [2020-10-14 22:55:34,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:34,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:55:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:55:34,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:34,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:34,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:34,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:34,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:34,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:55:34,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:34,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:34,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:34,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:34,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:35,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:35,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:35,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:55:35,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:35,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:55:35,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:35,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:35,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:35,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:35,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:55:35,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:35,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:55:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:35,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:35,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:35,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:55:35,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 22:55:35,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:35,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:55:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:35,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 22:55:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:35,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:35,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:35,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:55:35,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:35,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:55:35,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:35,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:35,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:35,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 22:55:35,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:35,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 222 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-14 22:55:35,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468002244] [2020-10-14 22:55:35,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:35,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:35,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813691179] [2020-10-14 22:55:35,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:35,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:35,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:35,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:35,747 INFO L87 Difference]: Start difference. First operand 10312 states and 12696 transitions. Second operand 7 states. [2020-10-14 22:55:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:57,068 INFO L93 Difference]: Finished difference Result 26494 states and 32936 transitions. [2020-10-14 22:55:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:55:57,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2020-10-14 22:55:57,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:57,129 INFO L225 Difference]: With dead ends: 26494 [2020-10-14 22:55:57,129 INFO L226 Difference]: Without dead ends: 13888 [2020-10-14 22:55:57,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:55:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2020-10-14 22:55:57,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 12368. [2020-10-14 22:55:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12368 states. [2020-10-14 22:55:57,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12368 states to 12368 states and 13691 transitions. [2020-10-14 22:55:57,389 INFO L78 Accepts]: Start accepts. Automaton has 12368 states and 13691 transitions. Word has length 421 [2020-10-14 22:55:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:57,390 INFO L479 AbstractCegarLoop]: Abstraction has 12368 states and 13691 transitions. [2020-10-14 22:55:57,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 12368 states and 13691 transitions. [2020-10-14 22:55:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-10-14 22:55:57,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:57,407 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:57,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:55:57,408 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:57,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:57,408 INFO L82 PathProgramCache]: Analyzing trace with hash 2134513876, now seen corresponding path program 1 times [2020-10-14 22:55:57,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:57,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358527157] [2020-10-14 22:55:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:57,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:57,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:59,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:59,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:02,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:02,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 542 [2020-10-14 22:56:02,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:56:02,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 22:56:02,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:02,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:56:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:56:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:56:02,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:02,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:02,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:02,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:02,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:02,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:02,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:56:02,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:02,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:02,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:56:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:02,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:02,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:03,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:03,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:03,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-14 22:56:03,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:03,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:56:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:56:03,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:03,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:03,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:03,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:03,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:03,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:03,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 22:56:03,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:03,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:03,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:56:03,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:03,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:56:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:04,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:56:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:04,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:04,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:04,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:56:04,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:04,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:56:04,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:04,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:04,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 22:56:04,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:04,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:04,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:56:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:04,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:04,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:04,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:56:04,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:04,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:56:04,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:04,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:56:04,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:04,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 99 proven. 169 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 22:56:04,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358527157] [2020-10-14 22:56:04,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:04,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:56:04,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599659610] [2020-10-14 22:56:04,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:56:04,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:04,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:56:04,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:56:04,745 INFO L87 Difference]: Start difference. First operand 12368 states and 13691 transitions. Second operand 8 states. [2020-10-14 22:56:21,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:21,160 INFO L93 Difference]: Finished difference Result 39072 states and 46382 transitions. [2020-10-14 22:56:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:56:21,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 526 [2020-10-14 22:56:21,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:21,260 INFO L225 Difference]: With dead ends: 39072 [2020-10-14 22:56:21,261 INFO L226 Difference]: Without dead ends: 26710 [2020-10-14 22:56:21,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:56:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26710 states. [2020-10-14 22:56:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26710 to 25097. [2020-10-14 22:56:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25097 states. [2020-10-14 22:56:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25097 states to 25097 states and 28798 transitions. [2020-10-14 22:56:21,808 INFO L78 Accepts]: Start accepts. Automaton has 25097 states and 28798 transitions. Word has length 526 [2020-10-14 22:56:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:21,809 INFO L479 AbstractCegarLoop]: Abstraction has 25097 states and 28798 transitions. [2020-10-14 22:56:21,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:56:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 25097 states and 28798 transitions. [2020-10-14 22:56:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2020-10-14 22:56:21,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:21,850 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:56:21,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:56:21,850 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:21,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash 2051567852, now seen corresponding path program 1 times [2020-10-14 22:56:21,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:21,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491506194] [2020-10-14 22:56:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:22,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1075 [2020-10-14 22:56:27,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:56:27,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-10-14 22:56:27,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:27,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:56:27,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:56:27,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:27,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:27,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:27,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:27,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:56:27,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:27,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:27,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:56:27,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:27,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:56:27,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:28,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:28,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:28,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:28,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:28,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:28,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 22:56:28,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:28,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:56:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:28,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:28,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:28,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:28,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:28,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:28,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:56:28,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:28,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:56:28,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:28,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:56:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:28,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:28,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:28,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:56:28,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:56:28,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:28,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:56:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:28,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:56:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:28,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:28,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:28,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:56:28,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:28,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:56:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:28,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:56:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 322 proven. 88 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-10-14 22:56:29,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491506194] [2020-10-14 22:56:29,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:29,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:29,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738185941] [2020-10-14 22:56:29,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:29,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:29,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:29,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:29,188 INFO L87 Difference]: Start difference. First operand 25097 states and 28798 transitions. Second operand 7 states. [2020-10-14 22:56:40,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:40,086 INFO L93 Difference]: Finished difference Result 61217 states and 72181 transitions. [2020-10-14 22:56:40,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:56:40,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1053 [2020-10-14 22:56:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:40,194 INFO L225 Difference]: With dead ends: 61217 [2020-10-14 22:56:40,194 INFO L226 Difference]: Without dead ends: 36126 [2020-10-14 22:56:40,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:40,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36126 states. [2020-10-14 22:56:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36126 to 35330. [2020-10-14 22:56:40,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35330 states. [2020-10-14 22:56:40,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35330 states to 35330 states and 41192 transitions. [2020-10-14 22:56:40,836 INFO L78 Accepts]: Start accepts. Automaton has 35330 states and 41192 transitions. Word has length 1053 [2020-10-14 22:56:40,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:40,839 INFO L479 AbstractCegarLoop]: Abstraction has 35330 states and 41192 transitions. [2020-10-14 22:56:40,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:40,839 INFO L276 IsEmpty]: Start isEmpty. Operand 35330 states and 41192 transitions. [2020-10-14 22:56:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1156 [2020-10-14 22:56:40,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:40,901 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:56:40,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:56:40,901 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:40,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:40,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1492078720, now seen corresponding path program 1 times [2020-10-14 22:56:40,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:40,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929886092] [2020-10-14 22:56:40,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:41,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:42,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:44,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:44,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1177 [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-14 22:56:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 22:56:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:46,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:46,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:46,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:56:46,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:46,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:46,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:56:46,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:46,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:56:46,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:46,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:46,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:56:46,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:46,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:56:46,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:47,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:56:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:47,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:47,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:47,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:56:47,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:56:47,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:47,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:56:47,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:56:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:47,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:47,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:47,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 22:56:47,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:56:47,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:47,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 22:56:47,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 573 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-14 22:56:47,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929886092] [2020-10-14 22:56:47,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:47,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:56:47,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839370748] [2020-10-14 22:56:47,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:56:47,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:47,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:56:47,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:56:47,930 INFO L87 Difference]: Start difference. First operand 35330 states and 41192 transitions. Second operand 8 states. [2020-10-14 22:56:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:58,353 INFO L93 Difference]: Finished difference Result 82916 states and 98955 transitions. [2020-10-14 22:56:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:56:58,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1155 [2020-10-14 22:56:58,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:58,490 INFO L225 Difference]: With dead ends: 82916 [2020-10-14 22:56:58,490 INFO L226 Difference]: Without dead ends: 47592 [2020-10-14 22:56:58,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:56:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47592 states. [2020-10-14 22:56:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47592 to 47510. [2020-10-14 22:56:59,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47510 states. [2020-10-14 22:56:59,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47510 states to 47510 states and 55825 transitions. [2020-10-14 22:56:59,358 INFO L78 Accepts]: Start accepts. Automaton has 47510 states and 55825 transitions. Word has length 1155 [2020-10-14 22:56:59,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:59,360 INFO L479 AbstractCegarLoop]: Abstraction has 47510 states and 55825 transitions. [2020-10-14 22:56:59,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:56:59,361 INFO L276 IsEmpty]: Start isEmpty. Operand 47510 states and 55825 transitions. [2020-10-14 22:56:59,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2020-10-14 22:56:59,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:59,383 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:59,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:56:59,384 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:59,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:59,385 INFO L82 PathProgramCache]: Analyzing trace with hash -144537420, now seen corresponding path program 1 times [2020-10-14 22:56:59,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:59,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244252340] [2020-10-14 22:56:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:59,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:00,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:04,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:04,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:04,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1214 [2020-10-14 22:57:04,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:57:04,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 22:57:04,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:04,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:57:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:57:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:04,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:04,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:04,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:04,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:04,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:04,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:57:04,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:04,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:04,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:04,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:04,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:04,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:04,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:04,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:57:04,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:04,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:04,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:04,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:04,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:04,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:04,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:57:04,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:57:04,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:04,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:05,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:57:05,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:57:05,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:57:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:57:05,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 22:57:05,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:05,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:57:05,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:05,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:57:05,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:57:05,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:57:05,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:57:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:57:05,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:57:05,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:57:05,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:57:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:57:05,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:57:05,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 22:57:05,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:05,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:57:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:57:05,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:57:05,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:57:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 427 proven. 190 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2020-10-14 22:57:06,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244252340] [2020-10-14 22:57:06,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:06,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:57:06,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710191742] [2020-10-14 22:57:06,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:57:06,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:06,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:57:06,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:57:06,712 INFO L87 Difference]: Start difference. First operand 47510 states and 55825 transitions. Second operand 7 states. [2020-10-14 22:57:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:16,893 INFO L93 Difference]: Finished difference Result 100749 states and 118118 transitions. [2020-10-14 22:57:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:57:16,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1190 [2020-10-14 22:57:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:17,026 INFO L225 Difference]: With dead ends: 100749 [2020-10-14 22:57:17,026 INFO L226 Difference]: Without dead ends: 53245 [2020-10-14 22:57:17,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:57:17,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53245 states. [2020-10-14 22:57:17,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53245 to 52489. [2020-10-14 22:57:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52489 states. [2020-10-14 22:57:17,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52489 states to 52489 states and 61129 transitions. [2020-10-14 22:57:17,892 INFO L78 Accepts]: Start accepts. Automaton has 52489 states and 61129 transitions. Word has length 1190 [2020-10-14 22:57:17,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:17,894 INFO L479 AbstractCegarLoop]: Abstraction has 52489 states and 61129 transitions. [2020-10-14 22:57:17,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:57:17,894 INFO L276 IsEmpty]: Start isEmpty. Operand 52489 states and 61129 transitions. [2020-10-14 22:57:17,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1227 [2020-10-14 22:57:17,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:17,925 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:57:17,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:57:17,926 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:17,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:17,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1110968474, now seen corresponding path program 1 times [2020-10-14 22:57:17,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:17,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919889389] [2020-10-14 22:57:17,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:18,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:18,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:23,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:23,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1248 [2020-10-14 22:57:23,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:57:23,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-14 22:57:23,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:23,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:23,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:23,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-14 22:57:23,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 22:57:23,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:23,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:23,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:23,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:23,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:23,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:23,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:57:23,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:23,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:23,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:23,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:23,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:23,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:23,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:57:23,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:23,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:57:23,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:23,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:23,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:23,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:23,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:23,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:23,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:23,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:23,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:23,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:57:23,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:57:23,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:23,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 40 [2020-10-14 22:57:23,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:23,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:23,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:23,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:57:23,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:23,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:57:23,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:23,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:23,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:23,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:23,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:57:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:23,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:23,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:57:23,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:57:23,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:23,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:23,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:23,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:23,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:23,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:23,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:23,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:23,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:57:23,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:57:23,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:23,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:57:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:24,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:24,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:24,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:57:24,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:24,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:57:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:24,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:24,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:57:24,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:24,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 22:57:24,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:24,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:24,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:24,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:24,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 22:57:24,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 701 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-14 22:57:25,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919889389] [2020-10-14 22:57:25,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:25,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:57:25,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96019831] [2020-10-14 22:57:25,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:57:25,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:25,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:57:25,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:57:25,601 INFO L87 Difference]: Start difference. First operand 52489 states and 61129 transitions. Second operand 8 states. [2020-10-14 22:57:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:36,636 INFO L93 Difference]: Finished difference Result 110694 states and 128714 transitions. [2020-10-14 22:57:36,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:57:36,638 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1226 [2020-10-14 22:57:36,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:36,750 INFO L225 Difference]: With dead ends: 110694 [2020-10-14 22:57:36,750 INFO L226 Difference]: Without dead ends: 58211 [2020-10-14 22:57:36,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:57:37,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58211 states. [2020-10-14 22:57:37,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58211 to 58166. [2020-10-14 22:57:37,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58166 states. [2020-10-14 22:57:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58166 states to 58166 states and 67232 transitions. [2020-10-14 22:57:37,599 INFO L78 Accepts]: Start accepts. Automaton has 58166 states and 67232 transitions. Word has length 1226 [2020-10-14 22:57:37,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:37,600 INFO L479 AbstractCegarLoop]: Abstraction has 58166 states and 67232 transitions. [2020-10-14 22:57:37,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:57:37,600 INFO L276 IsEmpty]: Start isEmpty. Operand 58166 states and 67232 transitions. [2020-10-14 22:57:37,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1317 [2020-10-14 22:57:37,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:37,629 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:57:37,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:57:37,629 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:37,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1855579943, now seen corresponding path program 1 times [2020-10-14 22:57:37,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:37,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564631765] [2020-10-14 22:57:37,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:37,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:38,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:39,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:42,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:42,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1342 [2020-10-14 22:57:42,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:57:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 22:57:42,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:42,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1163 [2020-10-14 22:57:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 22:57:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:57:43,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:57:43,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:57:43,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:57:43,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:57:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:57:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:57:43,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:57:43,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:57:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:57:43,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:57:43,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:43,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-14 22:57:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:57:43,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:43,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1147 [2020-10-14 22:57:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:43,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:43,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 22:57:43,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:43,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:57:43,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:43,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 22:57:43,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 776 proven. 2 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2020-10-14 22:57:44,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564631765] [2020-10-14 22:57:44,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:44,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:57:44,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703094913] [2020-10-14 22:57:44,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:57:44,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:44,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:57:44,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:57:44,907 INFO L87 Difference]: Start difference. First operand 58166 states and 67232 transitions. Second operand 7 states. [2020-10-14 22:57:56,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:56,306 INFO L93 Difference]: Finished difference Result 119229 states and 137888 transitions. [2020-10-14 22:57:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:57:56,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1316 [2020-10-14 22:57:56,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:56,444 INFO L225 Difference]: With dead ends: 119229 [2020-10-14 22:57:56,444 INFO L226 Difference]: Without dead ends: 61069 [2020-10-14 22:57:56,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:57:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61069 states. [2020-10-14 22:57:57,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61069 to 59587. [2020-10-14 22:57:57,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59587 states. [2020-10-14 22:57:57,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59587 states to 59587 states and 68754 transitions. [2020-10-14 22:57:57,159 INFO L78 Accepts]: Start accepts. Automaton has 59587 states and 68754 transitions. Word has length 1316 [2020-10-14 22:57:57,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:57,160 INFO L479 AbstractCegarLoop]: Abstraction has 59587 states and 68754 transitions. [2020-10-14 22:57:57,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:57:57,160 INFO L276 IsEmpty]: Start isEmpty. Operand 59587 states and 68754 transitions. [2020-10-14 22:57:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1318 [2020-10-14 22:57:57,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:57,193 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:57,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:57:57,194 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:57,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:57,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1573402569, now seen corresponding path program 1 times [2020-10-14 22:57:57,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:57,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125510465] [2020-10-14 22:57:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:57,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:57,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1341 [2020-10-14 22:58:01,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:58:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3770 [2020-10-14 22:58:01,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:58:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:58:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 192 [2020-10-14 22:58:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:58:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:01,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:58:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:58:01,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 22:58:01,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:58:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:58:01,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:01,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:58:01,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:01,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:01,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:01,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:58:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:58:01,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:01,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:58:01,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:01,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:58:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:58:01,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:01,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:58:01,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:01,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:58:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:58:01,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:01,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:58:01,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:58:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:01,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:01,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:58:01,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:58:01,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:01,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:01,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:01,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:58:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:01,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:02,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:02,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:58:02,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:58:02,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:02,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:58:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:58:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:02,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-14 22:58:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:02,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:02,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:02,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 22:58:02,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:02,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 22:58:02,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:02,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:58:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:58:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:58:02,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 800 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-14 22:58:03,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125510465] [2020-10-14 22:58:03,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:58:03,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:58:03,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488903450] [2020-10-14 22:58:03,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:58:03,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:58:03,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:58:03,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:58:03,960 INFO L87 Difference]: Start difference. First operand 59587 states and 68754 transitions. Second operand 7 states.