/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:12:52,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:12:52,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:12:52,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:12:52,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:12:52,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:12:52,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:12:52,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:12:52,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:12:52,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:12:52,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:12:52,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:12:52,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:12:52,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:12:52,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:12:52,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:12:52,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:12:52,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:12:52,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:12:52,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:12:52,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:12:52,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:12:52,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:12:52,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:12:52,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:12:52,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:12:52,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:12:52,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:12:52,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:12:52,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:12:52,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:12:52,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:12:52,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:12:52,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:12:52,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:12:52,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:12:52,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:12:52,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:12:52,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:12:52,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:12:52,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:12:52,293 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 22:12:52,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:12:52,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:12:52,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:12:52,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:12:52,339 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:12:52,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:12:52,339 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:12:52,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:12:52,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:12:52,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:12:52,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:12:52,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:12:52,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:12:52,341 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:12:52,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:12:52,341 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:12:52,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:12:52,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:12:52,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:12:52,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:12:52,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:12:52,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:12:52,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:12:52,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:12:52,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:12:52,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:12:52,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:12:52,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:12:52,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:12:52,344 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 22:12:52,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:12:52,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:12:52,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:12:52,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:12:52,682 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:12:52,683 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label22.c [2020-10-14 22:12:52,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/129f5d758/195dc5d88a3249e08b358302dcf1293b/FLAGf0a43607e [2020-10-14 22:12:53,349 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:12:53,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label22.c [2020-10-14 22:12:53,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/129f5d758/195dc5d88a3249e08b358302dcf1293b/FLAGf0a43607e [2020-10-14 22:12:53,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/129f5d758/195dc5d88a3249e08b358302dcf1293b [2020-10-14 22:12:53,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:12:53,626 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:12:53,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:12:53,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:12:53,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:12:53,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:12:53" (1/1) ... [2020-10-14 22:12:53,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256ae262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:53, skipping insertion in model container [2020-10-14 22:12:53,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:12:53" (1/1) ... [2020-10-14 22:12:53,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:12:53,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:12:54,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:12:54,760 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:12:55,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:12:55,169 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:12:55,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55 WrapperNode [2020-10-14 22:12:55,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:12:55,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:12:55,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:12:55,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:12:55,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... [2020-10-14 22:12:55,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... [2020-10-14 22:12:55,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... [2020-10-14 22:12:55,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... [2020-10-14 22:12:55,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... [2020-10-14 22:12:55,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... [2020-10-14 22:12:55,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... [2020-10-14 22:12:55,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:12:55,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:12:55,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:12:55,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:12:55,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:12:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:12:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:12:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:12:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:12:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:12:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:12:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:12:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:12:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:12:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:12:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:12:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:12:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:12:57,747 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:12:57,747 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:12:57,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:12:57 BoogieIcfgContainer [2020-10-14 22:12:57,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:12:57,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:12:57,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:12:57,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:12:57,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:12:53" (1/3) ... [2020-10-14 22:12:57,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422e4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:12:57, skipping insertion in model container [2020-10-14 22:12:57,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:55" (2/3) ... [2020-10-14 22:12:57,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422e4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:12:57, skipping insertion in model container [2020-10-14 22:12:57,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:12:57" (3/3) ... [2020-10-14 22:12:57,767 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label22.c [2020-10-14 22:12:57,777 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:12:57,795 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:12:57,809 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:12:57,850 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:12:57,850 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:12:57,850 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:12:57,850 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:12:57,850 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:12:57,850 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:12:57,851 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:12:57,851 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:12:57,888 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:12:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 22:12:57,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:57,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:57,901 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:57,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:57,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1496635070, now seen corresponding path program 1 times [2020-10-14 22:12:57,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:57,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536983369] [2020-10-14 22:12:57,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:58,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:58,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 22:12:58,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:58,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 22:12:58,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:58,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:12:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:12:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 22:12:58,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:12:58,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:58,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:58,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:58,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:58,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:12:58,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:58,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:12:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:58,438 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 22:12:58,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536983369] [2020-10-14 22:12:58,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:12:58,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:12:58,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253274365] [2020-10-14 22:12:58,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:12:58,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:58,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:12:58,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:12:58,466 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:13:01,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:01,862 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:13:01,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:13:01,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-14 22:13:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:01,887 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:13:01,888 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:13:01,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:13:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:13:02,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:13:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:13:02,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 22:13:02,018 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 19 [2020-10-14 22:13:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:02,019 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 22:13:02,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:13:02,019 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 22:13:02,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 22:13:02,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:02,024 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:13:02,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:13:02,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:02,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:02,025 INFO L82 PathProgramCache]: Analyzing trace with hash -519442725, now seen corresponding path program 1 times [2020-10-14 22:13:02,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:02,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72998717] [2020-10-14 22:13:02,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:02,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:02,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:02,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:02,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 22:13:02,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:13:02,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-14 22:13:02,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:02,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:13:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:13:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:13:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:02,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:02,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:02,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:02,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:02,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:02,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:13:02,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:02,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:02,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:13:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:03,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:03,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:03,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:13:03,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:13:03,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:03,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:13:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:13:03,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72998717] [2020-10-14 22:13:03,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:13:03,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:13:03,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716098772] [2020-10-14 22:13:03,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:03,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:03,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:03,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:03,164 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 7 states. [2020-10-14 22:13:06,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:06,739 INFO L93 Difference]: Finished difference Result 1743 states and 2672 transitions. [2020-10-14 22:13:06,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:13:06,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-14 22:13:06,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:06,748 INFO L225 Difference]: With dead ends: 1743 [2020-10-14 22:13:06,749 INFO L226 Difference]: Without dead ends: 1060 [2020-10-14 22:13:06,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:13:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-10-14 22:13:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1039. [2020-10-14 22:13:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-10-14 22:13:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1423 transitions. [2020-10-14 22:13:06,801 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1423 transitions. Word has length 94 [2020-10-14 22:13:06,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:06,801 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1423 transitions. [2020-10-14 22:13:06,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1423 transitions. [2020-10-14 22:13:06,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 22:13:06,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:06,806 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:13:06,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:13:06,806 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:06,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:06,807 INFO L82 PathProgramCache]: Analyzing trace with hash -902939634, now seen corresponding path program 1 times [2020-10-14 22:13:06,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:06,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176903101] [2020-10-14 22:13:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:07,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:07,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:07,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 22:13:07,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:13:07,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-14 22:13:07,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:07,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:13:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:13:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:13:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:07,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:07,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:07,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:07,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:07,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:07,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:13:07,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:07,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:13:07,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:13:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:07,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:07,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:07,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:13:07,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:07,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 22:13:07,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:07,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:13:07,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:13:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:13:07,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176903101] [2020-10-14 22:13:07,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:13:07,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:13:07,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507815730] [2020-10-14 22:13:07,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:07,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:07,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:07,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:07,746 INFO L87 Difference]: Start difference. First operand 1039 states and 1423 transitions. Second operand 7 states. [2020-10-14 22:13:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:11,957 INFO L93 Difference]: Finished difference Result 3164 states and 4408 transitions. [2020-10-14 22:13:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:13:11,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2020-10-14 22:13:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:11,980 INFO L225 Difference]: With dead ends: 3164 [2020-10-14 22:13:11,980 INFO L226 Difference]: Without dead ends: 2131 [2020-10-14 22:13:11,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:13:11,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2020-10-14 22:13:12,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2089. [2020-10-14 22:13:12,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-10-14 22:13:12,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2620 transitions. [2020-10-14 22:13:12,078 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2620 transitions. Word has length 95 [2020-10-14 22:13:12,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:12,078 INFO L479 AbstractCegarLoop]: Abstraction has 2089 states and 2620 transitions. [2020-10-14 22:13:12,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2620 transitions. [2020-10-14 22:13:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 22:13:12,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:12,089 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:13:12,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:13:12,093 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:12,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:12,094 INFO L82 PathProgramCache]: Analyzing trace with hash 717357563, now seen corresponding path program 1 times [2020-10-14 22:13:12,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:12,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628611860] [2020-10-14 22:13:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:12,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:12,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:12,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 22:13:12,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 22:13:12,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:12,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:12,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:13:12,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 22:13:12,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-14 22:13:12,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:12,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:12,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:12,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:12,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:12,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:13:12,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:12,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:12,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:13:12,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:12,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:12,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:13:12,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 22:13:12,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:12,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:12,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:12,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:13:12,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:13:12,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628611860] [2020-10-14 22:13:12,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:12,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:13:12,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061028925] [2020-10-14 22:13:12,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:13:12,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:12,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:13:12,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:13:12,671 INFO L87 Difference]: Start difference. First operand 2089 states and 2620 transitions. Second operand 5 states. [2020-10-14 22:13:16,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:16,132 INFO L93 Difference]: Finished difference Result 4874 states and 6254 transitions. [2020-10-14 22:13:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:13:16,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-14 22:13:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:16,159 INFO L225 Difference]: With dead ends: 4874 [2020-10-14 22:13:16,159 INFO L226 Difference]: Without dead ends: 2791 [2020-10-14 22:13:16,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:13:16,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2020-10-14 22:13:16,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2783. [2020-10-14 22:13:16,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2783 states. [2020-10-14 22:13:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3422 transitions. [2020-10-14 22:13:16,288 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3422 transitions. Word has length 110 [2020-10-14 22:13:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:16,289 INFO L479 AbstractCegarLoop]: Abstraction has 2783 states and 3422 transitions. [2020-10-14 22:13:16,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:13:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3422 transitions. [2020-10-14 22:13:16,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-14 22:13:16,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:16,315 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:13:16,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:13:16,316 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:16,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1798257218, now seen corresponding path program 1 times [2020-10-14 22:13:16,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:16,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880204406] [2020-10-14 22:13:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:16,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:16,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:16,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:17,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:17,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:18,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:20,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:21,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:21,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:21,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:13:21,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 22:13:21,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 22:13:21,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:21,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 22:13:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:13:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 294 [2020-10-14 22:13:21,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:21,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:21,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:21,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:21,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:21,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:21,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:13:21,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:21,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:21,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:13:21,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:21,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:21,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:21,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:21,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:13:21,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:13:21,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:13:21,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:21,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:21,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:13:21,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:13:21,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:13:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:21,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:21,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:21,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:21,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:13:21,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:13:21,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:13:21,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:21,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:21,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 22:13:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:21,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 22:13:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:21,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:22,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:22,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:13:22,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:22,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:13:22,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:22,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:22,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:22,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:22,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:13:22,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:22,295 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 198 proven. 82 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 22:13:22,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880204406] [2020-10-14 22:13:22,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:22,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:13:22,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291725019] [2020-10-14 22:13:22,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:13:22,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:22,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:13:22,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:13:22,299 INFO L87 Difference]: Start difference. First operand 2783 states and 3422 transitions. Second operand 9 states. [2020-10-14 22:13:26,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:26,502 INFO L93 Difference]: Finished difference Result 6980 states and 8731 transitions. [2020-10-14 22:13:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:13:26,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 303 [2020-10-14 22:13:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:26,520 INFO L225 Difference]: With dead ends: 6980 [2020-10-14 22:13:26,520 INFO L226 Difference]: Without dead ends: 3488 [2020-10-14 22:13:26,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:13:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2020-10-14 22:13:26,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3462. [2020-10-14 22:13:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3462 states. [2020-10-14 22:13:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 3734 transitions. [2020-10-14 22:13:26,614 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 3734 transitions. Word has length 303 [2020-10-14 22:13:26,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:26,615 INFO L479 AbstractCegarLoop]: Abstraction has 3462 states and 3734 transitions. [2020-10-14 22:13:26,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:13:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 3734 transitions. [2020-10-14 22:13:26,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2020-10-14 22:13:26,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:26,626 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:13:26,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:13:26,627 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:26,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:26,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1253504530, now seen corresponding path program 1 times [2020-10-14 22:13:26,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:26,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414826074] [2020-10-14 22:13:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:26,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:31,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 489 [2020-10-14 22:13:31,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:13:31,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 22:13:31,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:31,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:31,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:31,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-14 22:13:31,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:13:31,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:31,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:31,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:31,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:31,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:13:31,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:31,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:31,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:31,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:31,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:31,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:13:31,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:31,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:13:31,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:31,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:31,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:31,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:31,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:13:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:31,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:31,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:13:31,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:31,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:13:31,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:31,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:13:31,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:32,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:13:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:32,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:32,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:13:32,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 22:13:32,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:32,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:13:32,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:32,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:13:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:32,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:32,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:32,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:13:32,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:32,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:13:32,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:32,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:32,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:32,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:13:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:13:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 270 proven. 109 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-14 22:13:32,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414826074] [2020-10-14 22:13:32,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:32,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:32,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201082981] [2020-10-14 22:13:32,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:32,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:32,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:32,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:32,730 INFO L87 Difference]: Start difference. First operand 3462 states and 3734 transitions. Second operand 7 states. [2020-10-14 22:13:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:35,739 INFO L93 Difference]: Finished difference Result 8648 states and 9456 transitions. [2020-10-14 22:13:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:13:35,739 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 473 [2020-10-14 22:13:35,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:35,762 INFO L225 Difference]: With dead ends: 8648 [2020-10-14 22:13:35,763 INFO L226 Difference]: Without dead ends: 5192 [2020-10-14 22:13:35,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:13:35,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2020-10-14 22:13:35,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 5172. [2020-10-14 22:13:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5172 states. [2020-10-14 22:13:35,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 5641 transitions. [2020-10-14 22:13:35,907 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 5641 transitions. Word has length 473 [2020-10-14 22:13:35,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:35,907 INFO L479 AbstractCegarLoop]: Abstraction has 5172 states and 5641 transitions. [2020-10-14 22:13:35,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 5641 transitions. [2020-10-14 22:13:35,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2020-10-14 22:13:35,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:35,931 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 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] [2020-10-14 22:13:35,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:13:35,931 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:35,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:35,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1382241581, now seen corresponding path program 1 times [2020-10-14 22:13:35,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:35,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426851997] [2020-10-14 22:13:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:36,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:36,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:37,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:41,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:41,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 722 [2020-10-14 22:13:41,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:13:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-14 22:13:41,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:41,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:13:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:13:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:13:41,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:41,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:41,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:41,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:41,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:41,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:13:41,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:41,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:41,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:13:41,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:41,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:41,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:41,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:41,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:13:41,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:41,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-14 22:13:41,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:41,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:13:41,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:41,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:13:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:41,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:42,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:42,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:13:42,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:13:42,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:42,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:13:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:42,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:42,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:13:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:42,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:42,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:42,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:13:42,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:42,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:13:42,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:42,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:42,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:42,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:13:42,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:42,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:42,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 22:13:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:42,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:42,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:42,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:13:42,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:13:42,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:42,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:13:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:42,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-14 22:13:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:42,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:42,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:42,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:13:42,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:13:42,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:42,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:13:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 60 proven. 416 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2020-10-14 22:13:42,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426851997] [2020-10-14 22:13:42,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:42,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:42,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209210257] [2020-10-14 22:13:42,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:42,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:42,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:42,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:42,985 INFO L87 Difference]: Start difference. First operand 5172 states and 5641 transitions. Second operand 7 states. [2020-10-14 22:13:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:45,692 INFO L93 Difference]: Finished difference Result 11057 states and 12064 transitions. [2020-10-14 22:13:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:13:45,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 704 [2020-10-14 22:13:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:45,722 INFO L225 Difference]: With dead ends: 11057 [2020-10-14 22:13:45,722 INFO L226 Difference]: Without dead ends: 5891 [2020-10-14 22:13:45,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:13:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5891 states. [2020-10-14 22:13:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5891 to 5859. [2020-10-14 22:13:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5859 states. [2020-10-14 22:13:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 6355 transitions. [2020-10-14 22:13:45,867 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 6355 transitions. Word has length 704 [2020-10-14 22:13:45,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:45,868 INFO L479 AbstractCegarLoop]: Abstraction has 5859 states and 6355 transitions. [2020-10-14 22:13:45,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:45,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 6355 transitions. [2020-10-14 22:13:45,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2020-10-14 22:13:45,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:45,910 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:13:45,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:13:45,911 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:45,911 INFO L82 PathProgramCache]: Analyzing trace with hash -66243774, now seen corresponding path program 1 times [2020-10-14 22:13:45,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:45,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686484329] [2020-10-14 22:13:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:46,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:46,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:46,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:46,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:51,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:51,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 971 [2020-10-14 22:13:51,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:13:51,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-14 22:13:51,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:51,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:51,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:13:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:13:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:13:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:51,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:51,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:51,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:51,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:13:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:51,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:13:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:51,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:51,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:51,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:51,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:51,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:13:51,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:13:51,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 22:13:51,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:51,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:13:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:51,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:13:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:51,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:51,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:51,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:13:51,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:51,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 22:13:51,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:51,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:51,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:51,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:51,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:13:51,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:52,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:13:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:52,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:52,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:52,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:13:52,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:13:52,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:52,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:13:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:52,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:52,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:13:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:52,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:52,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:13:52,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:52,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:13:52,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:52,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:13:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:52,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:52,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-10-14 22:13:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:52,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:52,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:52,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:13:52,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:52,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:13:52,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:52,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:13:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:52,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:52,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 830 [2020-10-14 22:13:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:52,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:52,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:52,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:13:52,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:52,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:13:52,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:52,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:13:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:52,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 329 proven. 426 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked. [2020-10-14 22:13:53,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686484329] [2020-10-14 22:13:53,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:53,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:53,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168091557] [2020-10-14 22:13:53,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:53,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:53,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:53,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:53,399 INFO L87 Difference]: Start difference. First operand 5859 states and 6355 transitions. Second operand 7 states. [2020-10-14 22:13:55,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:55,823 INFO L93 Difference]: Finished difference Result 11044 states and 12020 transitions. [2020-10-14 22:13:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:13:55,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 951 [2020-10-14 22:13:55,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:55,849 INFO L225 Difference]: With dead ends: 11044 [2020-10-14 22:13:55,849 INFO L226 Difference]: Without dead ends: 5867 [2020-10-14 22:13:55,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:13:55,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5867 states. [2020-10-14 22:13:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5867 to 5859. [2020-10-14 22:13:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5859 states. [2020-10-14 22:13:55,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 6353 transitions. [2020-10-14 22:13:55,975 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 6353 transitions. Word has length 951 [2020-10-14 22:13:55,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:55,976 INFO L479 AbstractCegarLoop]: Abstraction has 5859 states and 6353 transitions. [2020-10-14 22:13:55,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:55,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 6353 transitions. [2020-10-14 22:13:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2020-10-14 22:13:55,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:55,996 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-10-14 22:13:55,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:13:55,997 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:55,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1082222794, now seen corresponding path program 1 times [2020-10-14 22:13:55,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:55,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840086520] [2020-10-14 22:13:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:56,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:56,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:56,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:58,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:01,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1007 [2020-10-14 22:14:01,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:01,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 22:14:01,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:01,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:14:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:14:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:01,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:01,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:01,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:01,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:01,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:01,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:14:01,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:01,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:01,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:01,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:01,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:01,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:01,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:01,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:14:01,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:01,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:14:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:01,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:01,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:01,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:01,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:14:01,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:01,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:14:01,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:01,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:14:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:02,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:14:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:02,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:02,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:02,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:02,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:14:02,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:02,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:14:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:02,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:14:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:02,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:02,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:14:02,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:14:02,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:02,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:14:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:02,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:14:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:02,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:02,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:14:02,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:02,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:14:02,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:02,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:14:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:02,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 22:14:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:02,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:02,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:02,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:14:02,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:02,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:14:02,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:02,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:02,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:02,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:14:02,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:02,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:02,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 864 [2020-10-14 22:14:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:02,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:02,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:14:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:02,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2341 backedges. 263 proven. 552 refuted. 0 times theorem prover too weak. 1526 trivial. 0 not checked. [2020-10-14 22:14:03,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840086520] [2020-10-14 22:14:03,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:03,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:14:03,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420767696] [2020-10-14 22:14:03,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:14:03,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:03,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:14:03,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:14:03,424 INFO L87 Difference]: Start difference. First operand 5859 states and 6353 transitions. Second operand 8 states. [2020-10-14 22:14:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:07,903 INFO L93 Difference]: Finished difference Result 14615 states and 16920 transitions. [2020-10-14 22:14:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:14:07,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 985 [2020-10-14 22:14:07,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:07,943 INFO L225 Difference]: With dead ends: 14615 [2020-10-14 22:14:07,943 INFO L226 Difference]: Without dead ends: 9438 [2020-10-14 22:14:07,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:14:07,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2020-10-14 22:14:08,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 8935. [2020-10-14 22:14:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8935 states. [2020-10-14 22:14:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8935 states to 8935 states and 9644 transitions. [2020-10-14 22:14:08,182 INFO L78 Accepts]: Start accepts. Automaton has 8935 states and 9644 transitions. Word has length 985 [2020-10-14 22:14:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:08,183 INFO L479 AbstractCegarLoop]: Abstraction has 8935 states and 9644 transitions. [2020-10-14 22:14:08,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:14:08,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8935 states and 9644 transitions. [2020-10-14 22:14:08,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2020-10-14 22:14:08,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:08,212 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:14:08,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:14:08,212 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:08,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:08,213 INFO L82 PathProgramCache]: Analyzing trace with hash 103022266, now seen corresponding path program 1 times [2020-10-14 22:14:08,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:08,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128333572] [2020-10-14 22:14:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:08,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:08,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:09,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:11,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:13,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:13,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1201 [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 793 [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:14:13,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:13,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:13,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:13,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:13,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:13,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:13,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:14:13,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:13,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:13,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:13,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:13,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:13,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:13,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:13,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:13,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:14:13,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:13,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:13,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:13,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:13,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:13,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:13,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:13,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:14:13,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:13,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:13,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:13,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:13,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:13,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:13,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:13,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:13,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:13,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:14:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:14,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:14,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:14,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:14:14,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:14,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 22:14:14,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:14,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:14:14,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:14,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2020-10-14 22:14:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:14,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:14,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:14,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:14:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 22:14:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:14,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:14,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:14:14,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:14,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1056 [2020-10-14 22:14:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:14,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:14,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:14,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:14:14,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:14,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:14:14,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:14,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:14:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:14,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2590 backedges. 884 proven. 111 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2020-10-14 22:14:15,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128333572] [2020-10-14 22:14:15,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:15,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:14:15,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587961447] [2020-10-14 22:14:15,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:15,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:15,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:15,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:15,861 INFO L87 Difference]: Start difference. First operand 8935 states and 9644 transitions. Second operand 7 states. [2020-10-14 22:14:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:18,802 INFO L93 Difference]: Finished difference Result 17543 states and 18994 transitions. [2020-10-14 22:14:18,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:14:18,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1179 [2020-10-14 22:14:18,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:18,834 INFO L225 Difference]: With dead ends: 17543 [2020-10-14 22:14:18,834 INFO L226 Difference]: Without dead ends: 9290 [2020-10-14 22:14:18,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:14:18,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9290 states. [2020-10-14 22:14:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9290 to 9278. [2020-10-14 22:14:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9278 states. [2020-10-14 22:14:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 9999 transitions. [2020-10-14 22:14:19,015 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 9999 transitions. Word has length 1179 [2020-10-14 22:14:19,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:19,017 INFO L479 AbstractCegarLoop]: Abstraction has 9278 states and 9999 transitions. [2020-10-14 22:14:19,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 9999 transitions. [2020-10-14 22:14:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2020-10-14 22:14:19,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:19,045 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:14:19,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:14:19,046 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:19,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:19,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1050505769, now seen corresponding path program 1 times [2020-10-14 22:14:19,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:19,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346119969] [2020-10-14 22:14:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:19,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:19,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:23,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:23,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:24,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1210 [2020-10-14 22:14:24,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:14:24,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-14 22:14:24,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:24,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:14:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:14:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 407 [2020-10-14 22:14:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:24,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:24,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:24,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:24,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:24,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:24,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:24,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:24,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:24,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:14:24,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:24,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:24,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:24,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:24,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:24,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:24,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:24,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:24,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:14:24,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:24,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:24,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:24,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:24,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:24,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:24,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:24,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:24,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:14:24,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:24,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:24,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:24,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:24,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:14:24,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:24,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 22:14:24,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:24,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:24,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:24,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:24,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:14:24,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:25,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:14:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:25,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:25,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:25,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:25,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:14:25,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:14:25,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-14 22:14:25,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:25,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 22:14:25,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:25,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 22:14:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:25,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:25,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:25,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:25,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:14:25,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:14:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:14:25,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:25,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:14:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 2301 trivial. 0 not checked. [2020-10-14 22:14:26,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346119969] [2020-10-14 22:14:26,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:26,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:14:26,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967418946] [2020-10-14 22:14:26,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:14:26,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:26,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:14:26,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:14:26,442 INFO L87 Difference]: Start difference. First operand 9278 states and 9999 transitions. Second operand 5 states. [2020-10-14 22:14:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:31,004 INFO L93 Difference]: Finished difference Result 17874 states and 19306 transitions. [2020-10-14 22:14:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:14:31,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1190 [2020-10-14 22:14:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:31,049 INFO L225 Difference]: With dead ends: 17874 [2020-10-14 22:14:31,049 INFO L226 Difference]: Without dead ends: 9278 [2020-10-14 22:14:31,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:14:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2020-10-14 22:14:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 9278. [2020-10-14 22:14:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9278 states. [2020-10-14 22:14:31,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 9920 transitions. [2020-10-14 22:14:31,235 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 9920 transitions. Word has length 1190 [2020-10-14 22:14:31,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:31,237 INFO L479 AbstractCegarLoop]: Abstraction has 9278 states and 9920 transitions. [2020-10-14 22:14:31,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:14:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 9920 transitions. [2020-10-14 22:14:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1249 [2020-10-14 22:14:31,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:31,274 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:14:31,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:14:31,274 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:31,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:31,275 INFO L82 PathProgramCache]: Analyzing trace with hash -853691221, now seen corresponding path program 1 times [2020-10-14 22:14:31,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:31,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600308679] [2020-10-14 22:14:31,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:31,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:32,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:35,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:35,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:36,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:36,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1268 [2020-10-14 22:14:36,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-14 22:14:36,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:36,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:14:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:14:36,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:36,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:36,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:36,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:36,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:36,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:36,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:36,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:36,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:36,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:14:36,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:36,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:36,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:36,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:36,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:36,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:36,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:36,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:36,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:36,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:14:36,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:36,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:36,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:36,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:36,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:36,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:37,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:37,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:37,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:14:37,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:14:37,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:37,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:14:37,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:14:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:37,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:37,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:37,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:14:37,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 22:14:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:37,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:37,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:37,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:37,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:39,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 877 proven. 169 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2020-10-14 22:14:39,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600308679] [2020-10-14 22:14:39,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:39,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:14:39,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776820924] [2020-10-14 22:14:39,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:39,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:39,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:39,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:39,125 INFO L87 Difference]: Start difference. First operand 9278 states and 9920 transitions. Second operand 7 states. [2020-10-14 22:14:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:42,499 INFO L93 Difference]: Finished difference Result 19236 states and 20599 transitions. [2020-10-14 22:14:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:14:42,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1248 [2020-10-14 22:14:42,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:42,526 INFO L225 Difference]: With dead ends: 19236 [2020-10-14 22:14:42,526 INFO L226 Difference]: Without dead ends: 10640 [2020-10-14 22:14:42,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 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 22:14:42,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2020-10-14 22:14:42,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 10638. [2020-10-14 22:14:42,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10638 states. [2020-10-14 22:14:42,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10638 states to 10638 states and 11332 transitions. [2020-10-14 22:14:42,717 INFO L78 Accepts]: Start accepts. Automaton has 10638 states and 11332 transitions. Word has length 1248 [2020-10-14 22:14:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:42,718 INFO L479 AbstractCegarLoop]: Abstraction has 10638 states and 11332 transitions. [2020-10-14 22:14:42,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 10638 states and 11332 transitions. [2020-10-14 22:14:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1286 [2020-10-14 22:14:42,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:42,762 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:14:42,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:14:42,762 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:42,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:42,763 INFO L82 PathProgramCache]: Analyzing trace with hash 978825290, now seen corresponding path program 1 times [2020-10-14 22:14:42,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:42,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954298114] [2020-10-14 22:14:42,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:43,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:43,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:45,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1311 [2020-10-14 22:14:48,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:48,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 22:14:48,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:48,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 22:14:48,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:14:48,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:48,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:14:48,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:48,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:48,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:48,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:48,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:14:48,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:48,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:48,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:14:48,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:14:48,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:48,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:14:48,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:14:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:14:48,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:14:48,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:48,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:14:48,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:48,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:14:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:14:48,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:14:48,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:48,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:14:48,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-14 22:14:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:14:48,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:14:48,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:14:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-14 22:14:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:14:48,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:14:48,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:48,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:14:48,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:48,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:48,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-14 22:14:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:49,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:14:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:49,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1202 [2020-10-14 22:14:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:49,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:49,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:49,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:14:49,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:49,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:14:49,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:49,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:14:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:49,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3958 backedges. 413 proven. 622 refuted. 0 times theorem prover too weak. 2923 trivial. 0 not checked. [2020-10-14 22:14:49,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954298114] [2020-10-14 22:14:49,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:49,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:14:49,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861365249] [2020-10-14 22:14:49,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:49,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:49,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:49,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:49,889 INFO L87 Difference]: Start difference. First operand 10638 states and 11332 transitions. Second operand 7 states. [2020-10-14 22:14:53,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:53,709 INFO L93 Difference]: Finished difference Result 22988 states and 24631 transitions. [2020-10-14 22:14:53,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:14:53,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1285 [2020-10-14 22:14:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:53,748 INFO L225 Difference]: With dead ends: 22988 [2020-10-14 22:14:53,749 INFO L226 Difference]: Without dead ends: 13032 [2020-10-14 22:14:53,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:14:53,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13032 states. [2020-10-14 22:14:53,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13032 to 12348. [2020-10-14 22:14:53,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12348 states. [2020-10-14 22:14:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12348 states to 12348 states and 13168 transitions. [2020-10-14 22:14:53,965 INFO L78 Accepts]: Start accepts. Automaton has 12348 states and 13168 transitions. Word has length 1285 [2020-10-14 22:14:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:53,966 INFO L479 AbstractCegarLoop]: Abstraction has 12348 states and 13168 transitions. [2020-10-14 22:14:53,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:53,966 INFO L276 IsEmpty]: Start isEmpty. Operand 12348 states and 13168 transitions. [2020-10-14 22:14:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1332 [2020-10-14 22:14:54,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:54,004 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 22:14:54,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:14:54,005 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:54,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1786843918, now seen corresponding path program 1 times [2020-10-14 22:14:54,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:54,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572884057] [2020-10-14 22:14:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:54,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:54,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:59,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:59,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1351 [2020-10-14 22:14:59,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:59,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 22:14:59,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:59,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 607 [2020-10-14 22:14:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:14:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:59,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:59,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:59,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:59,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:59,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:59,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:14:59,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:59,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:59,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:59,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:59,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:59,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:14:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:59,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:59,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:59,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:59,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:14:59,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:59,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:14:59,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:59,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:14:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:59,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:00,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:00,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:15:00,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:00,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 22:15:00,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:00,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 22:15:00,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:00,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:15:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:00,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:00,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:00,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:15:00,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:00,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:15:00,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:00,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:00,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:15:00,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:00,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:00,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1150 [2020-10-14 22:15:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:00,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:00,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:15:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:00,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2823 backedges. 690 proven. 439 refuted. 0 times theorem prover too weak. 1694 trivial. 0 not checked. [2020-10-14 22:15:01,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572884057] [2020-10-14 22:15:01,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:01,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:01,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443628457] [2020-10-14 22:15:01,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:01,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:01,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:01,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:01,215 INFO L87 Difference]: Start difference. First operand 12348 states and 13168 transitions. Second operand 7 states. [2020-10-14 22:15:05,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:05,128 INFO L93 Difference]: Finished difference Result 29448 states and 31759 transitions. [2020-10-14 22:15:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:15:05,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1331 [2020-10-14 22:15:05,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:05,167 INFO L225 Difference]: With dead ends: 29448 [2020-10-14 22:15:05,168 INFO L226 Difference]: Without dead ends: 17782 [2020-10-14 22:15:05,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:15:05,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17782 states. [2020-10-14 22:15:05,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17782 to 16763. [2020-10-14 22:15:05,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16763 states. [2020-10-14 22:15:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16763 states to 16763 states and 18083 transitions. [2020-10-14 22:15:05,451 INFO L78 Accepts]: Start accepts. Automaton has 16763 states and 18083 transitions. Word has length 1331 [2020-10-14 22:15:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:05,453 INFO L479 AbstractCegarLoop]: Abstraction has 16763 states and 18083 transitions. [2020-10-14 22:15:05,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 16763 states and 18083 transitions. [2020-10-14 22:15:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2020-10-14 22:15:05,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:05,498 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:05,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:15:05,499 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:05,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:05,499 INFO L82 PathProgramCache]: Analyzing trace with hash 791820875, now seen corresponding path program 1 times [2020-10-14 22:15:05,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:05,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505590694] [2020-10-14 22:15:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:05,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:08,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:09,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:10,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:10,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1354 [2020-10-14 22:15:10,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:15:10,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-14 22:15:10,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:10,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 22:15:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:15:10,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:10,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:10,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:10,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:10,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:10,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:10,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:10,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:10,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:10,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:10,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:10,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:10,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:10,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:10,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:10,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:10,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:10,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:11,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:15:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:11,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:11,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:15:11,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:11,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:15:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:11,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:11,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:11,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:15:11,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:11,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 22:15:11,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:11,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:15:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:11,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-14 22:15:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:11,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:11,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:11,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:15:11,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:11,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:15:11,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:11,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:11,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:11,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 22:15:11,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:11,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:11,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 880 [2020-10-14 22:15:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:11,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:11,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:11,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:11,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:11,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1153 [2020-10-14 22:15:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:11,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:15:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2764 backedges. 442 proven. 661 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2020-10-14 22:15:12,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505590694] [2020-10-14 22:15:12,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:12,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:12,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109226870] [2020-10-14 22:15:12,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:12,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:12,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:12,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:12,677 INFO L87 Difference]: Start difference. First operand 16763 states and 18083 transitions. Second operand 7 states. [2020-10-14 22:15:15,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:15,909 INFO L93 Difference]: Finished difference Result 35562 states and 38343 transitions. [2020-10-14 22:15:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:15:15,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1334 [2020-10-14 22:15:15,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:15,952 INFO L225 Difference]: With dead ends: 35562 [2020-10-14 22:15:15,952 INFO L226 Difference]: Without dead ends: 19481 [2020-10-14 22:15:15,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 22:15:15,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19481 states. [2020-10-14 22:15:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19481 to 18801. [2020-10-14 22:15:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18801 states. [2020-10-14 22:15:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18801 states to 18801 states and 20220 transitions. [2020-10-14 22:15:16,297 INFO L78 Accepts]: Start accepts. Automaton has 18801 states and 20220 transitions. Word has length 1334 [2020-10-14 22:15:16,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:16,298 INFO L479 AbstractCegarLoop]: Abstraction has 18801 states and 20220 transitions. [2020-10-14 22:15:16,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:16,299 INFO L276 IsEmpty]: Start isEmpty. Operand 18801 states and 20220 transitions. [2020-10-14 22:15:16,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1367 [2020-10-14 22:15:16,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:16,341 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 22:15:16,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:15:16,342 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:16,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:16,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1997716739, now seen corresponding path program 1 times [2020-10-14 22:15:16,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:16,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117326422] [2020-10-14 22:15:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:16,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:17,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:17,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:19,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1392 [2020-10-14 22:15:21,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:15:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 22:15:21,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 795 [2020-10-14 22:15:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:15:21,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:21,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:21,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:15:21,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:15:21,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:15:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:15:22,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:15:22,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:22,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:15:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:22,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:22,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:15:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:22,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:15:22,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:15:22,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:22,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-14 22:15:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:22,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:15:22,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:15:22,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:15:22,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 785 [2020-10-14 22:15:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:22,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:15:22,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 22:15:22,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:15:22,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1035 [2020-10-14 22:15:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:22,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:15:22,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:15:22,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:22,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:15:22,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:22,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1145 [2020-10-14 22:15:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:22,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:15:22,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:15:22,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:15:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1283 [2020-10-14 22:15:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:22,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:22,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:15:22,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:15:22,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:22,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:15:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4018 backedges. 950 proven. 313 refuted. 0 times theorem prover too weak. 2755 trivial. 0 not checked. [2020-10-14 22:15:23,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117326422] [2020-10-14 22:15:23,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:23,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:23,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423214507] [2020-10-14 22:15:23,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:23,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:23,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:23,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:23,993 INFO L87 Difference]: Start difference. First operand 18801 states and 20220 transitions. Second operand 7 states. [2020-10-14 22:15:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:27,447 INFO L93 Difference]: Finished difference Result 37265 states and 40105 transitions. [2020-10-14 22:15:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:15:27,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1366 [2020-10-14 22:15:27,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:27,489 INFO L225 Difference]: With dead ends: 37265 [2020-10-14 22:15:27,489 INFO L226 Difference]: Without dead ends: 19146 [2020-10-14 22:15:27,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:15:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19146 states. [2020-10-14 22:15:27,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19146 to 19138. [2020-10-14 22:15:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19138 states. [2020-10-14 22:15:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19138 states to 19138 states and 20560 transitions. [2020-10-14 22:15:27,815 INFO L78 Accepts]: Start accepts. Automaton has 19138 states and 20560 transitions. Word has length 1366 [2020-10-14 22:15:27,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:27,817 INFO L479 AbstractCegarLoop]: Abstraction has 19138 states and 20560 transitions. [2020-10-14 22:15:27,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 19138 states and 20560 transitions. [2020-10-14 22:15:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1366 [2020-10-14 22:15:27,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:27,850 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:27,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:15:27,851 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:27,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:27,851 INFO L82 PathProgramCache]: Analyzing trace with hash -915821874, now seen corresponding path program 1 times [2020-10-14 22:15:27,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:27,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132780540] [2020-10-14 22:15:27,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:28,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:28,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:30,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:31,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1385 [2020-10-14 22:15:33,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:15:33,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 22:15:33,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 919 [2020-10-14 22:15:33,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:15:33,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:33,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:33,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:15:33,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:15:33,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:15:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:15:33,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:15:33,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:15:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:15:33,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:15:33,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:15:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 22:15:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 911 [2020-10-14 22:15:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:34,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:34,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:15:34,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:34,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 22:15:34,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:34,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:15:34,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:34,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-14 22:15:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:34,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:34,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:34,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:15:34,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:34,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:15:34,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:34,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:15:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2993 backedges. 991 proven. 169 refuted. 0 times theorem prover too weak. 1833 trivial. 0 not checked. [2020-10-14 22:15:36,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132780540] [2020-10-14 22:15:36,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:36,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:36,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415111820] [2020-10-14 22:15:36,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:36,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:36,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:36,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:36,199 INFO L87 Difference]: Start difference. First operand 19138 states and 20560 transitions. Second operand 7 states. [2020-10-14 22:15:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:39,479 INFO L93 Difference]: Finished difference Result 37602 states and 40440 transitions. [2020-10-14 22:15:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:15:39,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1365 [2020-10-14 22:15:39,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:39,509 INFO L225 Difference]: With dead ends: 37602 [2020-10-14 22:15:39,509 INFO L226 Difference]: Without dead ends: 19146 [2020-10-14 22:15:39,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:15:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19146 states. [2020-10-14 22:15:39,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19146 to 18801. [2020-10-14 22:15:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18801 states. [2020-10-14 22:15:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18801 states to 18801 states and 20201 transitions. [2020-10-14 22:15:39,816 INFO L78 Accepts]: Start accepts. Automaton has 18801 states and 20201 transitions. Word has length 1365 [2020-10-14 22:15:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:39,818 INFO L479 AbstractCegarLoop]: Abstraction has 18801 states and 20201 transitions. [2020-10-14 22:15:39,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 18801 states and 20201 transitions. [2020-10-14 22:15:39,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1387 [2020-10-14 22:15:39,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:39,853 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 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 22:15:39,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:15:39,853 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:39,854 INFO L82 PathProgramCache]: Analyzing trace with hash 531266691, now seen corresponding path program 1 times [2020-10-14 22:15:39,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:39,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825195603] [2020-10-14 22:15:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:40,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:40,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:40,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1408 [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 942 [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:15:45,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:45,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:45,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:15:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:15:45,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:15:45,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:15:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:15:45,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:15:45,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:15:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:15:45,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:15:45,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-14 22:15:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:15:45,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:15:45,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:15:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:15:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:15:45,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 22:15:45,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:15:45,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:46,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1205 [2020-10-14 22:15:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:46,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:46,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:46,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:15:46,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:46,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:15:46,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:46,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:15:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3238 backedges. 1033 proven. 169 refuted. 0 times theorem prover too weak. 2036 trivial. 0 not checked. [2020-10-14 22:15:47,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825195603] [2020-10-14 22:15:47,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:47,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:47,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082137324] [2020-10-14 22:15:47,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:47,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:47,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:47,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:47,107 INFO L87 Difference]: Start difference. First operand 18801 states and 20201 transitions. Second operand 7 states. [2020-10-14 22:15:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:54,058 INFO L93 Difference]: Finished difference Result 39287 states and 42323 transitions. [2020-10-14 22:15:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:15:54,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1386 [2020-10-14 22:15:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:54,092 INFO L225 Difference]: With dead ends: 39287 [2020-10-14 22:15:54,092 INFO L226 Difference]: Without dead ends: 20829 [2020-10-14 22:15:54,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 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 22:15:54,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20829 states. [2020-10-14 22:15:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20829 to 19140. [2020-10-14 22:15:54,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19140 states. [2020-10-14 22:15:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19140 states to 19140 states and 20557 transitions. [2020-10-14 22:15:54,395 INFO L78 Accepts]: Start accepts. Automaton has 19140 states and 20557 transitions. Word has length 1386 [2020-10-14 22:15:54,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:54,396 INFO L479 AbstractCegarLoop]: Abstraction has 19140 states and 20557 transitions. [2020-10-14 22:15:54,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 19140 states and 20557 transitions. [2020-10-14 22:15:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1509 [2020-10-14 22:15:54,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:54,434 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:54,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:15:54,435 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:54,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:54,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1249039983, now seen corresponding path program 1 times [2020-10-14 22:15:54,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:54,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45124554] [2020-10-14 22:15:54,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:54,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:54,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:55,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:56,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:59,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:59,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1534 [2020-10-14 22:15:59,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:15:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 22:15:59,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:59,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 678 [2020-10-14 22:15:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:15:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:59,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:59,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:59,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:59,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:59,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:59,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:59,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:59,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:59,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:59,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:59,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:59,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:59,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:15:59,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:59,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:15:59,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:59,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:59,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:00,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:00,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:00,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:00,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:16:00,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:00,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:16:00,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:00,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:00,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:00,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:16:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:00,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:00,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:00,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:00,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:00,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:16:00,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:00,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:00,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:00,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:00,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:16:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:00,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:00,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:00,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:16:00,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:00,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:16:00,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:00,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:16:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-14 22:16:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:00,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:00,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:16:00,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:00,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 22:16:00,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:00,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:00,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:00,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:00,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:16:00,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:01,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:16:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:01,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:01,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:16:01,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:01,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:16:01,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:01,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:16:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:01,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:01,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1074 [2020-10-14 22:16:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:01,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:01,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:01,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:16:01,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:01,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:16:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-14 22:16:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:01,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:01,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:01,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:16:01,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:01,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:16:01,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:01,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:01,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:16:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:01,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1322 [2020-10-14 22:16:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:01,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:01,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:01,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:16:01,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:01,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:16:01,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:01,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:01,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:16:01,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:01,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4676 backedges. 837 proven. 555 refuted. 0 times theorem prover too weak. 3284 trivial. 0 not checked. [2020-10-14 22:16:03,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45124554] [2020-10-14 22:16:03,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:03,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:03,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617042046] [2020-10-14 22:16:03,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:03,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:03,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:03,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:03,369 INFO L87 Difference]: Start difference. First operand 19140 states and 20557 transitions. Second operand 7 states. [2020-10-14 22:16:07,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:07,190 INFO L93 Difference]: Finished difference Result 38954 states and 41883 transitions. [2020-10-14 22:16:07,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:16:07,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1508 [2020-10-14 22:16:07,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:07,224 INFO L225 Difference]: With dead ends: 38954 [2020-10-14 22:16:07,224 INFO L226 Difference]: Without dead ends: 20159 [2020-10-14 22:16:07,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:16:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20159 states. [2020-10-14 22:16:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20159 to 18803. [2020-10-14 22:16:07,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18803 states. [2020-10-14 22:16:07,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18803 states to 18803 states and 20169 transitions. [2020-10-14 22:16:07,473 INFO L78 Accepts]: Start accepts. Automaton has 18803 states and 20169 transitions. Word has length 1508 [2020-10-14 22:16:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:07,474 INFO L479 AbstractCegarLoop]: Abstraction has 18803 states and 20169 transitions. [2020-10-14 22:16:07,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 18803 states and 20169 transitions. [2020-10-14 22:16:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1548 [2020-10-14 22:16:07,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:07,508 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:16:07,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:16:07,509 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:07,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:07,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1115022082, now seen corresponding path program 1 times [2020-10-14 22:16:07,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:07,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106120322] [2020-10-14 22:16:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:08,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:08,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:09,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:12,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:12,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1575 [2020-10-14 22:16:12,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-14 22:16:12,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:12,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 22:16:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:16:12,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:12,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:12,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:12,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:12,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:12,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:16:12,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:12,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:12,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:12,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:13,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:13,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:13,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:13,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:13,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:13,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:13,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:16:13,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:13,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:16:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:13,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:13,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:13,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:13,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:13,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 22:16:13,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:13,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:16:13,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:13,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:16:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:13,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:13,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:13,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:16:13,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:16:13,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:13,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 22:16:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:13,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 22:16:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:13,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:13,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:16:13,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:13,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:16:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:13,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-14 22:16:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:13,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:13,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:13,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:16:13,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 22:16:13,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:13,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:16:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:14,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:16:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:14,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:14,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:16:14,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:14,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:16:14,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:14,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:14,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-14 22:16:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:14,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:14,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:14,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:14,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:14,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:16:14,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:14,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:16:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:14,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1223 [2020-10-14 22:16:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:14,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:14,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:14,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:16:14,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:14,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:16:14,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:14,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:16:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:14,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1361 [2020-10-14 22:16:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:14,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:14,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:16:14,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:14,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:16:14,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:14,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:14,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:14,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:16:14,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:14,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:15,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4539 backedges. 413 proven. 666 refuted. 0 times theorem prover too weak. 3460 trivial. 0 not checked. [2020-10-14 22:16:15,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106120322] [2020-10-14 22:16:15,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:15,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:15,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748326994] [2020-10-14 22:16:15,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:15,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:15,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:15,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:15,476 INFO L87 Difference]: Start difference. First operand 18803 states and 20169 transitions. Second operand 7 states. [2020-10-14 22:16:19,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:19,108 INFO L93 Difference]: Finished difference Result 42336 states and 45578 transitions. [2020-10-14 22:16:19,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:16:19,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1547 [2020-10-14 22:16:19,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:19,151 INFO L225 Difference]: With dead ends: 42336 [2020-10-14 22:16:19,151 INFO L226 Difference]: Without dead ends: 23878 [2020-10-14 22:16:19,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:16:19,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23878 states. [2020-10-14 22:16:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23878 to 22189. [2020-10-14 22:16:19,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22189 states. [2020-10-14 22:16:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22189 states to 22189 states and 23880 transitions. [2020-10-14 22:16:19,415 INFO L78 Accepts]: Start accepts. Automaton has 22189 states and 23880 transitions. Word has length 1547 [2020-10-14 22:16:19,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:19,416 INFO L479 AbstractCegarLoop]: Abstraction has 22189 states and 23880 transitions. [2020-10-14 22:16:19,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 22189 states and 23880 transitions. [2020-10-14 22:16:19,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1643 [2020-10-14 22:16:19,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:19,452 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:19,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:16:19,453 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:19,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1675556677, now seen corresponding path program 1 times [2020-10-14 22:16:19,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:19,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532985574] [2020-10-14 22:16:19,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:19,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:25,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1668 [2020-10-14 22:16:25,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:25,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5623 [2020-10-14 22:16:25,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:25,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 22:16:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:16:25,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:25,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:25,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:25,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:25,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:25,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:16:25,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:25,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:25,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:25,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:25,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:25,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:25,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:25,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:25,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:16:25,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:16:25,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:25,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:25,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:16:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:25,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:16:25,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:25,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:16:25,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:25,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:25,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:25,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:25,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:16:25,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:25,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:16:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:25,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:16:26,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-14 22:16:26,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:16:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 661 [2020-10-14 22:16:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 22:16:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 937 [2020-10-14 22:16:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:16:26,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:16:26,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:16:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1020 [2020-10-14 22:16:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:16:26,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:16:26,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 22:16:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1208 [2020-10-14 22:16:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:16:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1318 [2020-10-14 22:16:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:16:26,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:16:26,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:16:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1456 [2020-10-14 22:16:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:16:26,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:16:26,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:16:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0