/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_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:51:48,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:51:48,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:51:48,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:51:48,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:51:48,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:51:48,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:51:48,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:51:48,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:51:48,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:51:48,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:51:48,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:51:48,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:51:48,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:51:48,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:51:48,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:51:48,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:51:48,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:51:48,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:51:48,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:51:48,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:51:48,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:51:48,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:51:48,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:51:48,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:51:48,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:51:48,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:51:48,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:51:48,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:51:48,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:51:48,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:51:48,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:51:48,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:51:48,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:51:48,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:51:48,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:51:48,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:51:48,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:51:48,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:51:48,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:51:48,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:51:48,965 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 22:51:48,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:51:48,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:51:48,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:51:48,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:51:48,991 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:51:48,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:51:48,991 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:51:48,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:51:48,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:51:48,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:51:48,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:51:48,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:51:48,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:51:48,992 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:51:48,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:51:48,993 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:51:48,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:51:48,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:51:48,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:51:48,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:51:48,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:51:48,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:51:48,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:51:48,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:51:48,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:51:48,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:51:48,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:51:48,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:51:48,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:51:48,995 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 22:51:49,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:51:49,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:51:49,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:51:49,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:51:49,344 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:51:49,345 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label47.c [2020-10-14 22:51:49,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a43ad4ea8/6ee4ede97f464a339396b3b5b8cd6d3d/FLAGc062a6ad1 [2020-10-14 22:51:50,226 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:51:50,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label47.c [2020-10-14 22:51:50,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a43ad4ea8/6ee4ede97f464a339396b3b5b8cd6d3d/FLAGc062a6ad1 [2020-10-14 22:51:50,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a43ad4ea8/6ee4ede97f464a339396b3b5b8cd6d3d [2020-10-14 22:51:50,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:51:50,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:51:50,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:51:50,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:51:50,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:51:50,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:51:50" (1/1) ... [2020-10-14 22:51:50,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5d5e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:50, skipping insertion in model container [2020-10-14 22:51:50,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:51:50" (1/1) ... [2020-10-14 22:51:50,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:51:50,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:51:51,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:51:51,739 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:51:52,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:51:52,313 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:51:52,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52 WrapperNode [2020-10-14 22:51:52,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:51:52,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:51:52,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:51:52,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:51:52,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (1/1) ... [2020-10-14 22:51:52,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (1/1) ... [2020-10-14 22:51:52,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (1/1) ... [2020-10-14 22:51:52,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (1/1) ... [2020-10-14 22:51:52,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (1/1) ... [2020-10-14 22:51:52,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (1/1) ... [2020-10-14 22:51:52,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (1/1) ... [2020-10-14 22:51:52,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:51:52,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:51:52,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:51:52,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:51:52,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (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 22:51:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:51:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:51:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:51:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:51:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:51:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:51:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:51:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:51:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:51:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:51:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:51:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:51:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:51:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:51:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:51:58,582 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:51:58,583 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:51:58,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:51:58 BoogieIcfgContainer [2020-10-14 22:51:58,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:51:58,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:51:58,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:51:58,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:51:58,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:51:50" (1/3) ... [2020-10-14 22:51:58,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b76f649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:51:58, skipping insertion in model container [2020-10-14 22:51:58,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:51:52" (2/3) ... [2020-10-14 22:51:58,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b76f649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:51:58, skipping insertion in model container [2020-10-14 22:51:58,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:51:58" (3/3) ... [2020-10-14 22:51:58,616 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label47.c [2020-10-14 22:51:58,627 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:51:58,642 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:51:58,657 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:51:58,689 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:51:58,690 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:51:58,690 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:51:58,690 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:51:58,690 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:51:58,690 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:51:58,691 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:51:58,691 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:51:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:51:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 22:51:58,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:51:58,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:51:58,738 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:51:58,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:51:58,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1073373186, now seen corresponding path program 1 times [2020-10-14 22:51:58,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:51:58,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153650465] [2020-10-14 22:51:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:51:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:59,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:59,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:59,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:51:59,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:59,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-14 22:51:59,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:59,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:51:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:51:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:51:59,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:51:59,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:51:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:59,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:59,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:59,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:51:59,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:51:59,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:59,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:51:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:51:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:59,636 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 22:51:59,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153650465] [2020-10-14 22:51:59,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:51:59,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 22:51:59,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896157957] [2020-10-14 22:51:59,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:51:59,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:51:59,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:51:59,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:51:59,664 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 22:52:10,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:52:10,753 INFO L93 Difference]: Finished difference Result 2984 states and 5769 transitions. [2020-10-14 22:52:10,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:52:10,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-14 22:52:10,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:52:10,792 INFO L225 Difference]: With dead ends: 2984 [2020-10-14 22:52:10,793 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 22:52:10,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:52:10,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 22:52:10,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-14 22:52:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-14 22:52:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3571 transitions. [2020-10-14 22:52:11,012 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3571 transitions. Word has length 65 [2020-10-14 22:52:11,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:11,013 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3571 transitions. [2020-10-14 22:52:11,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:52:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3571 transitions. [2020-10-14 22:52:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 22:52:11,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:11,021 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:52:11,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:52:11,022 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:11,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:11,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1041219894, now seen corresponding path program 1 times [2020-10-14 22:52:11,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:11,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358114778] [2020-10-14 22:52:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:11,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:11,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:12,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:12,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:12,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:52:12,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:52:12,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-10-14 22:52:12,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:12,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:12,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:52:12,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:52:12,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 22:52:12,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 29 [2020-10-14 22:52:12,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:52:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:12,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:12,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:12,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:52:12,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:12,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:52:12,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:12,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:52:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:52:12,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:12,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:52:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:12,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:13,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:13,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:52:13,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:13,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 22:52:13,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:13,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:52:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:52:13,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:52:13,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358114778] [2020-10-14 22:52:13,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:52:13,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:52:13,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406639326] [2020-10-14 22:52:13,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:52:13,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:52:13,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:52:13,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:52:13,246 INFO L87 Difference]: Start difference. First operand 2135 states and 3571 transitions. Second operand 7 states. [2020-10-14 22:52:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:52:21,779 INFO L93 Difference]: Finished difference Result 6458 states and 10876 transitions. [2020-10-14 22:52:21,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:52:21,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-14 22:52:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:52:21,811 INFO L225 Difference]: With dead ends: 6458 [2020-10-14 22:52:21,812 INFO L226 Difference]: Without dead ends: 4329 [2020-10-14 22:52:21,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:52:21,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4329 states. [2020-10-14 22:52:21,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4329 to 3581. [2020-10-14 22:52:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3581 states. [2020-10-14 22:52:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 5275 transitions. [2020-10-14 22:52:21,978 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 5275 transitions. Word has length 153 [2020-10-14 22:52:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:21,981 INFO L479 AbstractCegarLoop]: Abstraction has 3581 states and 5275 transitions. [2020-10-14 22:52:21,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:52:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 5275 transitions. [2020-10-14 22:52:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 22:52:21,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:21,997 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 22:52:21,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:52:21,998 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:21,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:21,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1711916307, now seen corresponding path program 1 times [2020-10-14 22:52:21,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:21,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66545058] [2020-10-14 22:52:21,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:22,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:22,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:24,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:27,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:27,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-14 22:52:27,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:52:27,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 22:52:27,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:27,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:52:27,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:52:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:52:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:27,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:27,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:27,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:52:27,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:27,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:52:27,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:27,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:27,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:52:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:27,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:27,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:27,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:52:27,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:52:27,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:27,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:52:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:27,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:52:27,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:27,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:52:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:27,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:27,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:27,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:52:27,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:27,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:52:27,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:27,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:52:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:52:27,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:52:27,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66545058] [2020-10-14 22:52:27,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:52:27,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:52:27,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951421936] [2020-10-14 22:52:27,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:52:27,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:52:27,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:52:27,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:52:27,472 INFO L87 Difference]: Start difference. First operand 3581 states and 5275 transitions. Second operand 7 states. [2020-10-14 22:52:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:52:40,414 INFO L93 Difference]: Finished difference Result 10134 states and 14885 transitions. [2020-10-14 22:52:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:52:40,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 224 [2020-10-14 22:52:40,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:52:40,448 INFO L225 Difference]: With dead ends: 10134 [2020-10-14 22:52:40,449 INFO L226 Difference]: Without dead ends: 5837 [2020-10-14 22:52:40,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 22:52:40,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5837 states. [2020-10-14 22:52:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5837 to 5822. [2020-10-14 22:52:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5822 states. [2020-10-14 22:52:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5822 states to 5822 states and 8095 transitions. [2020-10-14 22:52:40,622 INFO L78 Accepts]: Start accepts. Automaton has 5822 states and 8095 transitions. Word has length 224 [2020-10-14 22:52:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:40,624 INFO L479 AbstractCegarLoop]: Abstraction has 5822 states and 8095 transitions. [2020-10-14 22:52:40,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:52:40,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5822 states and 8095 transitions. [2020-10-14 22:52:40,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-14 22:52:40,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:40,640 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:52:40,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:52:40,641 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:40,642 INFO L82 PathProgramCache]: Analyzing trace with hash 512734582, now seen corresponding path program 1 times [2020-10-14 22:52:40,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:40,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702704635] [2020-10-14 22:52:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:40,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:43,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:45,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:45,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:52:45,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:52:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4960 [2020-10-14 22:52:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:45,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:52:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:52:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:52:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:45,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:52:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:45,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:45,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:45,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:52:45,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:52:45,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:45,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:52:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:52:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:45,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:52:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:45,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:46,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:46,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:52:46,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:46,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 22:52:46,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:46,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:52:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:52:46,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:52:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:46,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:46,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:46,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:52:46,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:52:46,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:46,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:52:46,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:46,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:46,477 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 116 proven. 83 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:52:46,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702704635] [2020-10-14 22:52:46,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:52:46,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:52:46,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334877787] [2020-10-14 22:52:46,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:52:46,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:52:46,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:52:46,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:52:46,482 INFO L87 Difference]: Start difference. First operand 5822 states and 8095 transitions. Second operand 7 states. [2020-10-14 22:52:55,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:52:55,387 INFO L93 Difference]: Finished difference Result 13188 states and 17970 transitions. [2020-10-14 22:52:55,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:52:55,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2020-10-14 22:52:55,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:52:55,423 INFO L225 Difference]: With dead ends: 13188 [2020-10-14 22:52:55,423 INFO L226 Difference]: Without dead ends: 7376 [2020-10-14 22:52:55,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:52:55,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7376 states. [2020-10-14 22:52:55,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7376 to 6545. [2020-10-14 22:52:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6545 states. [2020-10-14 22:52:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6545 states to 6545 states and 8773 transitions. [2020-10-14 22:52:55,602 INFO L78 Accepts]: Start accepts. Automaton has 6545 states and 8773 transitions. Word has length 275 [2020-10-14 22:52:55,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:55,603 INFO L479 AbstractCegarLoop]: Abstraction has 6545 states and 8773 transitions. [2020-10-14 22:52:55,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:52:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 6545 states and 8773 transitions. [2020-10-14 22:52:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2020-10-14 22:52:55,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:55,617 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:52:55,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:52:55,618 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:55,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:55,618 INFO L82 PathProgramCache]: Analyzing trace with hash 210006434, now seen corresponding path program 1 times [2020-10-14 22:52:55,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:55,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971212084] [2020-10-14 22:52:55,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:55,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:55,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:56,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:57,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:58,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:00,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:00,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 475 [2020-10-14 22:53:00,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:53:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4536 [2020-10-14 22:53:00,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:00,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:00,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:00,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:53:00,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:53:00,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 22:53:00,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:00,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:00,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:00,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:00,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:53:00,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:00,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:00,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:00,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:00,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:00,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:00,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:00,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:00,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:53:00,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:00,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 22:53:00,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:00,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:00,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:53:00,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:00,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:53:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:00,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:00,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:00,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:53:00,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 22:53:00,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:00,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:53:00,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:01,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 22:53:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:01,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:01,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:01,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:53:01,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:01,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:53:01,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:01,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:53:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 297 proven. 87 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 22:53:01,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971212084] [2020-10-14 22:53:01,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:53:01,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:53:01,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062065897] [2020-10-14 22:53:01,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:53:01,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:01,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:53:01,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:53:01,439 INFO L87 Difference]: Start difference. First operand 6545 states and 8773 transitions. Second operand 7 states. [2020-10-14 22:53:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:12,914 INFO L93 Difference]: Finished difference Result 14073 states and 19475 transitions. [2020-10-14 22:53:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:53:12,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 461 [2020-10-14 22:53:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:12,945 INFO L225 Difference]: With dead ends: 14073 [2020-10-14 22:53:12,945 INFO L226 Difference]: Without dead ends: 7422 [2020-10-14 22:53:12,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 22:53:12,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7422 states. [2020-10-14 22:53:13,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7422 to 7274. [2020-10-14 22:53:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7274 states. [2020-10-14 22:53:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7274 states to 7274 states and 8606 transitions. [2020-10-14 22:53:13,104 INFO L78 Accepts]: Start accepts. Automaton has 7274 states and 8606 transitions. Word has length 461 [2020-10-14 22:53:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:13,104 INFO L479 AbstractCegarLoop]: Abstraction has 7274 states and 8606 transitions. [2020-10-14 22:53:13,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:53:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 7274 states and 8606 transitions. [2020-10-14 22:53:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2020-10-14 22:53:13,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:13,119 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:53:13,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:53:13,119 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:13,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:13,120 INFO L82 PathProgramCache]: Analyzing trace with hash 392119337, now seen corresponding path program 1 times [2020-10-14 22:53:13,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:13,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337967105] [2020-10-14 22:53:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:13,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:13,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:14,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:18,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:18,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 598 [2020-10-14 22:53:18,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:53:18,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 22:53:18,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:18,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:18,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:53:18,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:53:18,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:53:18,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:18,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:18,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:18,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:18,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:18,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:18,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:53:18,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:18,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:18,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:53:18,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:18,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:18,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:19,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:19,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:53:19,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:19,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-14 22:53:19,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:19,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:53:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:53:19,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:19,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:19,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:19,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:53:19,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:53:19,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:19,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:53:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:53:19,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:19,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:53:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:19,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:19,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:19,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:53:19,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:19,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:53:19,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:19,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-14 22:53:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:19,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:19,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2020-10-14 22:53:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:19,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:19,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:19,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:53:19,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:19,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:53:19,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:19,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:53:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:19,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 174 proven. 200 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-14 22:53:20,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337967105] [2020-10-14 22:53:20,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:53:20,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:53:20,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807342282] [2020-10-14 22:53:20,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:53:20,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:20,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:53:20,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:53:20,286 INFO L87 Difference]: Start difference. First operand 7274 states and 8606 transitions. Second operand 9 states. [2020-10-14 22:53:31,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:31,603 INFO L93 Difference]: Finished difference Result 20769 states and 25718 transitions. [2020-10-14 22:53:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:53:31,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 582 [2020-10-14 22:53:31,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:31,655 INFO L225 Difference]: With dead ends: 20769 [2020-10-14 22:53:31,656 INFO L226 Difference]: Without dead ends: 14203 [2020-10-14 22:53:31,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:53:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14203 states. [2020-10-14 22:53:31,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14203 to 13377. [2020-10-14 22:53:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13377 states. [2020-10-14 22:53:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13377 states to 13377 states and 16125 transitions. [2020-10-14 22:53:31,986 INFO L78 Accepts]: Start accepts. Automaton has 13377 states and 16125 transitions. Word has length 582 [2020-10-14 22:53:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:31,987 INFO L479 AbstractCegarLoop]: Abstraction has 13377 states and 16125 transitions. [2020-10-14 22:53:31,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:53:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13377 states and 16125 transitions. [2020-10-14 22:53:32,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-10-14 22:53:32,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:32,053 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:32,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:53:32,054 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:32,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:32,055 INFO L82 PathProgramCache]: Analyzing trace with hash 183237760, now seen corresponding path program 1 times [2020-10-14 22:53:32,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:32,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518542389] [2020-10-14 22:53:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:32,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:34,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:35,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1131 [2020-10-14 22:53:37,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:53:37,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 22:53:37,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:53:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:53:37,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:37,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:37,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:37,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:37,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:53:37,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:37,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:37,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:53:37,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:53:37,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:37,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:53:37,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:37,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:53:37,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:37,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:37,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:53:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:37,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:53:37,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:53:37,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:37,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:38,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:53:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:38,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:38,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:38,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:53:38,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:38,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:38,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:38,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:53:38,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:38,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:53:38,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:38,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:38,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:38,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:38,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:53:38,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:38,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:53:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:38,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:38,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:53:38,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:38,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:53:38,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:38,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:53:38,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:53:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:38,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:38,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:38,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:53:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:53:38,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:38,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:53:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 486 proven. 87 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2020-10-14 22:53:39,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518542389] [2020-10-14 22:53:39,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:53:39,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:53:39,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798095183] [2020-10-14 22:53:39,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:53:39,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:39,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:53:39,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:53:39,275 INFO L87 Difference]: Start difference. First operand 13377 states and 16125 transitions. Second operand 8 states. [2020-10-14 22:53:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:49,490 INFO L93 Difference]: Finished difference Result 31889 states and 38908 transitions. [2020-10-14 22:53:49,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:53:49,492 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1109 [2020-10-14 22:53:49,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:49,557 INFO L225 Difference]: With dead ends: 31889 [2020-10-14 22:53:49,557 INFO L226 Difference]: Without dead ends: 19930 [2020-10-14 22:53:49,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:53:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2020-10-14 22:53:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 17729. [2020-10-14 22:53:49,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17729 states. [2020-10-14 22:53:49,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17729 states to 17729 states and 21200 transitions. [2020-10-14 22:53:49,980 INFO L78 Accepts]: Start accepts. Automaton has 17729 states and 21200 transitions. Word has length 1109 [2020-10-14 22:53:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:49,983 INFO L479 AbstractCegarLoop]: Abstraction has 17729 states and 21200 transitions. [2020-10-14 22:53:49,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:53:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 17729 states and 21200 transitions. [2020-10-14 22:53:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1200 [2020-10-14 22:53:50,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:50,011 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:53:50,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:53:50,012 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:50,013 INFO L82 PathProgramCache]: Analyzing trace with hash -400592532, now seen corresponding path program 1 times [2020-10-14 22:53:50,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:50,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212892324] [2020-10-14 22:53:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:50,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:52,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:53,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:53,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:55,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:55,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1223 [2020-10-14 22:53:55,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:53:55,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 22:53:55,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:55,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:55,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:55,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-14 22:53:55,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:53:55,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:55,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:55,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:55,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:55,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:53:55,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:55,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:55,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:55,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:55,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:55,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:53:55,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:55,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 22:53:55,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:55,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:55,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:55,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:55,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:55,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:55,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:53:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:55,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:55,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:55,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:53:55,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:55,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:53:55,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:55,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:55,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:55,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:55,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:55,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:55,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:53:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:55,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:55,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:55,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:55,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:55,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:55,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:53:55,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:55,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:53:55,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:55,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:56,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:53:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:56,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:56,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:53:56,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:56,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:53:56,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:56,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 22:53:56,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:56,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:53:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:56,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:56,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:56,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:53:56,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:56,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:53:56,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:56,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:53:56,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:56,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1054 [2020-10-14 22:53:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:56,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:53:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:53:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:56,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:53:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1463 backedges. 637 proven. 87 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2020-10-14 22:53:57,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212892324] [2020-10-14 22:53:57,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:53:57,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:53:57,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680475603] [2020-10-14 22:53:57,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:53:57,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:57,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:53:57,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:53:57,178 INFO L87 Difference]: Start difference. First operand 17729 states and 21200 transitions. Second operand 7 states. [2020-10-14 22:54:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:10,386 INFO L93 Difference]: Finished difference Result 39321 states and 48476 transitions. [2020-10-14 22:54:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:54:10,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1199 [2020-10-14 22:54:10,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:10,454 INFO L225 Difference]: With dead ends: 39321 [2020-10-14 22:54:10,455 INFO L226 Difference]: Without dead ends: 23010 [2020-10-14 22:54:10,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 22:54:10,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23010 states. [2020-10-14 22:54:10,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23010 to 22850. [2020-10-14 22:54:10,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22850 states. [2020-10-14 22:54:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22850 states to 22850 states and 26965 transitions. [2020-10-14 22:54:10,956 INFO L78 Accepts]: Start accepts. Automaton has 22850 states and 26965 transitions. Word has length 1199 [2020-10-14 22:54:10,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:10,958 INFO L479 AbstractCegarLoop]: Abstraction has 22850 states and 26965 transitions. [2020-10-14 22:54:10,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:54:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 22850 states and 26965 transitions. [2020-10-14 22:54:10,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2020-10-14 22:54:10,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:10,991 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:10,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:54:10,992 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1239264617, now seen corresponding path program 1 times [2020-10-14 22:54:10,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:10,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6095275] [2020-10-14 22:54:10,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:11,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:11,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:12,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:13,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:14,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:16,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:16,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1226 [2020-10-14 22:54:16,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:54:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 22:54:16,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:16,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-14 22:54:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:54:16,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:16,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:16,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:16,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:54:16,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:16,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:16,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:16,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:16,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:16,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:54:16,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:16,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:54:16,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:16,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:16,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:16,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:16,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:16,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:54:16,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:54:16,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:16,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:16,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:16,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:54:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:16,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:16,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:16,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:54:16,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:16,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:54:16,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:16,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:16,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:16,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:16,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:17,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:54:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:17,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:17,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:17,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:17,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:17,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:54:17,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:54:17,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:17,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:17,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:17,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:54:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:17,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:17,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:17,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:54:17,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:54:17,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:17,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 22:54:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:17,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:54:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:17,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:17,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:17,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 22:54:17,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:54:17,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:17,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 22:54:17,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:18,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1057 [2020-10-14 22:54:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:18,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:18,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:54:18,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:18,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:54:18,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:18,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:54:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 643 proven. 87 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2020-10-14 22:54:18,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6095275] [2020-10-14 22:54:18,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:18,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:54:18,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694263781] [2020-10-14 22:54:18,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:18,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:18,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:18,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:18,725 INFO L87 Difference]: Start difference. First operand 22850 states and 26965 transitions. Second operand 7 states. [2020-10-14 22:54:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:29,283 INFO L93 Difference]: Finished difference Result 50097 states and 60973 transitions. [2020-10-14 22:54:29,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:54:29,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1202 [2020-10-14 22:54:29,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:29,368 INFO L225 Difference]: With dead ends: 50097 [2020-10-14 22:54:29,368 INFO L226 Difference]: Without dead ends: 28665 [2020-10-14 22:54:29,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:54:29,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28665 states. [2020-10-14 22:54:29,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28665 to 28628. [2020-10-14 22:54:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28628 states. [2020-10-14 22:54:29,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 33880 transitions. [2020-10-14 22:54:29,938 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 33880 transitions. Word has length 1202 [2020-10-14 22:54:29,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:29,939 INFO L479 AbstractCegarLoop]: Abstraction has 28628 states and 33880 transitions. [2020-10-14 22:54:29,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:54:29,939 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 33880 transitions. [2020-10-14 22:54:29,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2020-10-14 22:54:29,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:29,967 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:54:29,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:54:29,968 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:29,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:29,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1773053628, now seen corresponding path program 1 times [2020-10-14 22:54:29,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:29,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519114190] [2020-10-14 22:54:29,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:30,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:30,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:31,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:32,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:35,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:35,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1247 [2020-10-14 22:54:35,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:54:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 22:54:35,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:35,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:54:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:54:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:35,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:35,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:35,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:35,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:35,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:35,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:54:35,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:35,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:35,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:35,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:35,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:54:35,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:54:35,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:35,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:35,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:35,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:35,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:35,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:35,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:54:35,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:35,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:54:35,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:35,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:35,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:35,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:54:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:35,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:35,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:35,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:54:35,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:54:35,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:35,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:35,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:54:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:35,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:36,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:54:36,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 22:54:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:36,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:54:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:36,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:36,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:36,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:36,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:54:36,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:54:36,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:36,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:54:36,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:36,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:54:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:36,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:36,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:36,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:54:36,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:36,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:54:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:36,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:36,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:36,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:54:36,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:36,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:54:36,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:36,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:36,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:54:36,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:36,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:36,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-14 22:54:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:36,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:36,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 22:54:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:36,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1076 [2020-10-14 22:54:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:36,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:36,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:36,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:54:36,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:36,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:54:36,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:36,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:54:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:36,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1746 backedges. 554 proven. 225 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2020-10-14 22:54:37,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519114190] [2020-10-14 22:54:37,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:37,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:54:37,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563374518] [2020-10-14 22:54:37,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:37,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:37,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:37,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:37,148 INFO L87 Difference]: Start difference. First operand 28628 states and 33880 transitions. Second operand 7 states. [2020-10-14 22:54:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:47,427 INFO L93 Difference]: Finished difference Result 70812 states and 86362 transitions. [2020-10-14 22:54:47,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:54:47,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1221 [2020-10-14 22:54:47,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:47,548 INFO L225 Difference]: With dead ends: 70812 [2020-10-14 22:54:47,548 INFO L226 Difference]: Without dead ends: 43602 [2020-10-14 22:54:47,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:54:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43602 states. [2020-10-14 22:54:48,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43602 to 43548. [2020-10-14 22:54:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43548 states. [2020-10-14 22:54:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43548 states to 43548 states and 51365 transitions. [2020-10-14 22:54:48,536 INFO L78 Accepts]: Start accepts. Automaton has 43548 states and 51365 transitions. Word has length 1221 [2020-10-14 22:54:48,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:48,537 INFO L479 AbstractCegarLoop]: Abstraction has 43548 states and 51365 transitions. [2020-10-14 22:54:48,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:54:48,537 INFO L276 IsEmpty]: Start isEmpty. Operand 43548 states and 51365 transitions. [2020-10-14 22:54:48,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1292 [2020-10-14 22:54:48,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:48,563 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:48,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:54:48,564 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:48,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1960392288, now seen corresponding path program 1 times [2020-10-14 22:54:48,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:48,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219194964] [2020-10-14 22:54:48,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:48,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:49,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:50,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:51,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1315 [2020-10-14 22:54:53,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:54:53,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-14 22:54:53,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1121 [2020-10-14 22:54:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 22:54:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:54:54,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 22:54:54,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:54:54,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:54:54,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:54:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:54:54,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:54:54,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:54:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:54:54,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:54:54,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:54:54,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:54:54,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:54:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:54:54,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:54:54,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:54:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:54:54,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-14 22:54:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 22:54:54,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:54:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 22:54:54,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 22:54:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 314 proven. 5 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2020-10-14 22:54:56,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219194964] [2020-10-14 22:54:56,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:56,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:54:56,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258296237] [2020-10-14 22:54:56,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:54:56,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:56,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:54:56,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:54:56,554 INFO L87 Difference]: Start difference. First operand 43548 states and 51365 transitions. Second operand 6 states. [2020-10-14 22:55:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:08,390 INFO L93 Difference]: Finished difference Result 102552 states and 124373 transitions. [2020-10-14 22:55:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:55:08,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1291 [2020-10-14 22:55:08,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:08,542 INFO L225 Difference]: With dead ends: 102552 [2020-10-14 22:55:08,542 INFO L226 Difference]: Without dead ends: 60422 [2020-10-14 22:55:08,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 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 22:55:08,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60422 states. [2020-10-14 22:55:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60422 to 60403. [2020-10-14 22:55:09,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60403 states. [2020-10-14 22:55:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60403 states to 60403 states and 69019 transitions. [2020-10-14 22:55:09,473 INFO L78 Accepts]: Start accepts. Automaton has 60403 states and 69019 transitions. Word has length 1291 [2020-10-14 22:55:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:09,474 INFO L479 AbstractCegarLoop]: Abstraction has 60403 states and 69019 transitions. [2020-10-14 22:55:09,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:55:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 60403 states and 69019 transitions. [2020-10-14 22:55:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1334 [2020-10-14 22:55:09,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:09,508 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:55:09,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:55:09,508 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:09,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:09,509 INFO L82 PathProgramCache]: Analyzing trace with hash -843550868, now seen corresponding path program 1 times [2020-10-14 22:55:09,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:09,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491181508] [2020-10-14 22:55:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:09,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:09,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:11,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:12,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:14,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1359 [2020-10-14 22:55:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:55:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 22:55:14,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:14,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:55:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1121 [2020-10-14 22:55:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 22:55:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:14,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:14,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:14,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:14,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:14,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:14,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:55:14,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:14,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:14,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:14,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:55:15,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:55:15,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:15,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:15,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:55:15,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:55:15,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:15,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:55:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:55:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:55:15,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:15,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:55:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:55:15,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:55:15,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:15,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:15,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:15,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:15,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:15,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:55:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:55:15,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:55:15,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:15,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:15,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:55:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:55:15,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:55:15,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:15,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:55:15,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:15,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-14 22:55:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:55:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:15,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1188 [2020-10-14 22:55:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:55:15,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2064 backedges. 799 proven. 4 refuted. 0 times theorem prover too weak. 1261 trivial. 0 not checked. [2020-10-14 22:55:17,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491181508] [2020-10-14 22:55:17,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:17,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:55:17,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140327954] [2020-10-14 22:55:17,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:55:17,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:17,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:55:17,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:55:17,542 INFO L87 Difference]: Start difference. First operand 60403 states and 69019 transitions. Second operand 8 states.