/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_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:12:11,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:12:11,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:12:11,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:12:11,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:12:11,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:12:11,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:12:11,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:12:11,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:12:11,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:12:11,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:12:11,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:12:11,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:12:11,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:12:11,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:12:11,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:12:11,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:12:11,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:12:11,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:12:11,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:12:11,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:12:11,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:12:11,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:12:11,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:12:11,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:12:11,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:12:11,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:12:11,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:12:11,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:12:11,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:12:11,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:12:11,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:12:11,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:12:11,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:12:11,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:12:11,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:12:11,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:12:11,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:12:11,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:12:11,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:12:11,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:12:11,365 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 22:12:11,394 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:12:11,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:12:11,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:12:11,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:12:11,398 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:12:11,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:12:11,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:12:11,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:12:11,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:12:11,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:12:11,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:12:11,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:12:11,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:12:11,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:12:11,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:12:11,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:12:11,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:12:11,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:12:11,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:12:11,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:12:11,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:12:11,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:12:11,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:12:11,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:12:11,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:12:11,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:12:11,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:12:11,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:12:11,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:12:11,404 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 22:12:11,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:12:11,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:12:11,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:12:11,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:12:11,750 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:12:11,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label16.c [2020-10-14 22:12:11,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c090c11d/9b673e01011046dd87241a3413b3a766/FLAGfc826becc [2020-10-14 22:12:12,518 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:12:12,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label16.c [2020-10-14 22:12:12,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c090c11d/9b673e01011046dd87241a3413b3a766/FLAGfc826becc [2020-10-14 22:12:12,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c090c11d/9b673e01011046dd87241a3413b3a766 [2020-10-14 22:12:12,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:12:12,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:12:12,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:12:12,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:12:12,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:12:12,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:12:12" (1/1) ... [2020-10-14 22:12:12,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41238cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:12, skipping insertion in model container [2020-10-14 22:12:12,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:12:12" (1/1) ... [2020-10-14 22:12:12,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:12:12,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:12:13,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:12:13,756 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:12:14,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:12:14,325 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:12:14,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14 WrapperNode [2020-10-14 22:12:14,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:12:14,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:12:14,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:12:14,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:12:14,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (1/1) ... [2020-10-14 22:12:14,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (1/1) ... [2020-10-14 22:12:14,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (1/1) ... [2020-10-14 22:12:14,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (1/1) ... [2020-10-14 22:12:14,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (1/1) ... [2020-10-14 22:12:14,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (1/1) ... [2020-10-14 22:12:14,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (1/1) ... [2020-10-14 22:12:14,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:12:14,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:12:14,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:12:14,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:12:14,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (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 22:12:14,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:12:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:12:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:12:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:12:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:12:14,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:12:14,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:12:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:12:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:12:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:12:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:12:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:12:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:12:16,972 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:12:16,973 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:12:16,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:12:16 BoogieIcfgContainer [2020-10-14 22:12:16,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:12:16,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:12:16,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:12:16,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:12:16,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:12:12" (1/3) ... [2020-10-14 22:12:16,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391bb38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:12:16, skipping insertion in model container [2020-10-14 22:12:16,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:12:14" (2/3) ... [2020-10-14 22:12:16,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391bb38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:12:16, skipping insertion in model container [2020-10-14 22:12:16,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:12:16" (3/3) ... [2020-10-14 22:12:16,991 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label16.c [2020-10-14 22:12:17,003 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:12:17,012 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:12:17,026 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:12:17,053 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:12:17,053 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:12:17,054 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:12:17,054 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:12:17,054 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:12:17,054 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:12:17,054 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:12:17,054 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:12:17,082 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:12:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 22:12:17,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:17,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:17,093 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:17,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:17,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1899898085, now seen corresponding path program 1 times [2020-10-14 22:12:17,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:17,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341266613] [2020-10-14 22:12:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:17,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:17,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:17,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 22:12:17,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:17,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-10-14 22:12:17,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:17,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:17,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:12:17,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:12:17,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 22:12:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:12:17,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:17,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:17,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:17,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:17,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:17,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:12:17,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:17,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:17,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:17,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:17,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:12:17,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:17,823 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 22:12:17,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341266613] [2020-10-14 22:12:17,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:12:17,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:12:17,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53454736] [2020-10-14 22:12:17,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:12:17,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:17,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:12:17,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:12:17,850 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:12:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:21,435 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:12:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:12:21,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-14 22:12:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:21,459 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:12:21,459 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:12:21,470 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 22:12:21,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:12:21,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:12:21,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:12:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1035 transitions. [2020-10-14 22:12:21,576 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1035 transitions. Word has length 48 [2020-10-14 22:12:21,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:21,577 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1035 transitions. [2020-10-14 22:12:21,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:12:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1035 transitions. [2020-10-14 22:12:21,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 22:12:21,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:21,584 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:21,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:12:21,584 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:21,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:21,585 INFO L82 PathProgramCache]: Analyzing trace with hash 694062048, now seen corresponding path program 1 times [2020-10-14 22:12:21,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:21,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754573712] [2020-10-14 22:12:21,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:21,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:21,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:22,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:22,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:22,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:22,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:12:22,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 811 [2020-10-14 22:12:22,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:22,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:12:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:12:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:12:22,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:12:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:22,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:22,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:22,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:22,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:22,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:12:22,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:22,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:22,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:12:22,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:22,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:22,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:22,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:22,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:22,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:12:22,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:12:22,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 22:12:22,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:22,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:22,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:12:22,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:22,831 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:12:22,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754573712] [2020-10-14 22:12:22,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:22,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:22,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618987222] [2020-10-14 22:12:22,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:22,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:22,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:22,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:22,836 INFO L87 Difference]: Start difference. First operand 689 states and 1035 transitions. Second operand 7 states. [2020-10-14 22:12:29,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:29,077 INFO L93 Difference]: Finished difference Result 3431 states and 5257 transitions. [2020-10-14 22:12:29,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:12:29,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2020-10-14 22:12:29,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:29,109 INFO L225 Difference]: With dead ends: 3431 [2020-10-14 22:12:29,110 INFO L226 Difference]: Without dead ends: 2748 [2020-10-14 22:12:29,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:12:29,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2020-10-14 22:12:29,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2744. [2020-10-14 22:12:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2744 states. [2020-10-14 22:12:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3785 transitions. [2020-10-14 22:12:29,217 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3785 transitions. Word has length 120 [2020-10-14 22:12:29,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:29,218 INFO L479 AbstractCegarLoop]: Abstraction has 2744 states and 3785 transitions. [2020-10-14 22:12:29,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:29,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3785 transitions. [2020-10-14 22:12:29,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-14 22:12:29,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:29,226 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:12:29,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:12:29,227 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:29,228 INFO L82 PathProgramCache]: Analyzing trace with hash 462428277, now seen corresponding path program 1 times [2020-10-14 22:12:29,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:29,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874302932] [2020-10-14 22:12:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:29,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:29,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:30,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:31,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-14 22:12:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:12:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3650 [2020-10-14 22:12:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:32,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:12:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:12:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 228 [2020-10-14 22:12:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:33,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:33,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:33,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:33,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:33,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:12:33,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:33,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:33,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:12:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:33,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:12:33,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:12:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 22:12:33,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:33,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:12:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:33,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:12:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:33,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:12:33,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:12:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-14 22:12:33,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:33,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 22:12:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 113 proven. 48 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:12:33,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874302932] [2020-10-14 22:12:33,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:33,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:12:33,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143734457] [2020-10-14 22:12:33,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:12:33,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:33,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:12:33,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:12:33,735 INFO L87 Difference]: Start difference. First operand 2744 states and 3785 transitions. Second operand 8 states. [2020-10-14 22:12:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:39,352 INFO L93 Difference]: Finished difference Result 6525 states and 8879 transitions. [2020-10-14 22:12:39,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 22:12:39,357 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 222 [2020-10-14 22:12:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:39,381 INFO L225 Difference]: With dead ends: 6525 [2020-10-14 22:12:39,381 INFO L226 Difference]: Without dead ends: 3787 [2020-10-14 22:12:39,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 22:12:39,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3787 states. [2020-10-14 22:12:39,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3787 to 2765. [2020-10-14 22:12:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2765 states. [2020-10-14 22:12:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 3825 transitions. [2020-10-14 22:12:39,491 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 3825 transitions. Word has length 222 [2020-10-14 22:12:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:39,493 INFO L479 AbstractCegarLoop]: Abstraction has 2765 states and 3825 transitions. [2020-10-14 22:12:39,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:12:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 3825 transitions. [2020-10-14 22:12:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-14 22:12:39,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:39,507 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:12:39,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:12:39,508 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:39,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1136327846, now seen corresponding path program 1 times [2020-10-14 22:12:39,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:39,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910607693] [2020-10-14 22:12:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:39,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:39,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:40,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:40,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:43,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:43,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:12:43,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3912 [2020-10-14 22:12:43,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:43,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:12:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:12:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-14 22:12:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:43,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:43,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:43,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:43,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:43,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:12:43,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:43,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:12:43,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:43,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:43,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:43,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:43,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:43,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:12:43,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:12:43,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 22:12:43,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:43,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:12:43,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:43,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:12:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:43,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:43,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:43,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:12:43,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 22:12:43,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:43,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:12:43,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:12:44,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910607693] [2020-10-14 22:12:44,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:44,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:12:44,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025915276] [2020-10-14 22:12:44,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:12:44,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:44,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:12:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:12:44,232 INFO L87 Difference]: Start difference. First operand 2765 states and 3825 transitions. Second operand 8 states. [2020-10-14 22:12:48,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:48,257 INFO L93 Difference]: Finished difference Result 6218 states and 8546 transitions. [2020-10-14 22:12:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:12:48,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 263 [2020-10-14 22:12:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:48,277 INFO L225 Difference]: With dead ends: 6218 [2020-10-14 22:12:48,277 INFO L226 Difference]: Without dead ends: 3459 [2020-10-14 22:12:48,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:12:48,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2020-10-14 22:12:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3453. [2020-10-14 22:12:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3453 states. [2020-10-14 22:12:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3453 states to 3453 states and 4367 transitions. [2020-10-14 22:12:48,380 INFO L78 Accepts]: Start accepts. Automaton has 3453 states and 4367 transitions. Word has length 263 [2020-10-14 22:12:48,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:48,382 INFO L479 AbstractCegarLoop]: Abstraction has 3453 states and 4367 transitions. [2020-10-14 22:12:48,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:12:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3453 states and 4367 transitions. [2020-10-14 22:12:48,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-10-14 22:12:48,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:48,390 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:48,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:12:48,391 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:48,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:48,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1461676956, now seen corresponding path program 1 times [2020-10-14 22:12:48,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:48,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453021622] [2020-10-14 22:12:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:48,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:48,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 406 [2020-10-14 22:12:53,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:53,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 22:12:53,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:12:53,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:12:53,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:53,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:53,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:12:53,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:53,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:12:53,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:12:53,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:12:53,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:12:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:53,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 22:12:53,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:12:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:54,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:12:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:54,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:54,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:54,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:12:54,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:12:54,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:54,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:12:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:54,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 224 proven. 114 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 22:12:54,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453021622] [2020-10-14 22:12:54,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:54,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:54,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837355555] [2020-10-14 22:12:54,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:54,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:54,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:54,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:54,263 INFO L87 Difference]: Start difference. First operand 3453 states and 4367 transitions. Second operand 7 states. [2020-10-14 22:12:58,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:58,888 INFO L93 Difference]: Finished difference Result 7985 states and 10305 transitions. [2020-10-14 22:12:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:12:58,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 392 [2020-10-14 22:12:58,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:58,912 INFO L225 Difference]: With dead ends: 7985 [2020-10-14 22:12:58,912 INFO L226 Difference]: Without dead ends: 4538 [2020-10-14 22:12:58,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:12:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2020-10-14 22:12:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4518. [2020-10-14 22:12:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4518 states. [2020-10-14 22:12:59,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 5533 transitions. [2020-10-14 22:12:59,024 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 5533 transitions. Word has length 392 [2020-10-14 22:12:59,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:59,024 INFO L479 AbstractCegarLoop]: Abstraction has 4518 states and 5533 transitions. [2020-10-14 22:12:59,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 5533 transitions. [2020-10-14 22:12:59,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-10-14 22:12:59,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:59,034 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:59,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:12:59,034 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:59,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1511616815, now seen corresponding path program 1 times [2020-10-14 22:12:59,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:59,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995195565] [2020-10-14 22:12:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:59,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:59,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:59,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:03,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:04,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:04,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 424 [2020-10-14 22:13:04,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:13:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-14 22:13:04,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:04,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:13:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:13:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:13:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:04,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:04,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:04,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:04,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:04,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:04,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:13:04,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:04,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:13:04,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:04,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:04,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:04,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:04,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:13:04,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:04,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-14 22:13:04,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:04,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:04,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:04,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:13:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:13:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:04,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:05,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:05,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:13:05,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:05,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:13:05,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:05,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:13:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 82 proven. 110 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:13:05,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995195565] [2020-10-14 22:13:05,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:05,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:05,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077125242] [2020-10-14 22:13:05,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:05,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:05,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:05,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:05,184 INFO L87 Difference]: Start difference. First operand 4518 states and 5533 transitions. Second operand 7 states. [2020-10-14 22:13:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:09,045 INFO L93 Difference]: Finished difference Result 9784 states and 11986 transitions. [2020-10-14 22:13:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:13:09,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 412 [2020-10-14 22:13:09,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:09,072 INFO L225 Difference]: With dead ends: 9784 [2020-10-14 22:13:09,072 INFO L226 Difference]: Without dead ends: 5272 [2020-10-14 22:13:09,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:13:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2020-10-14 22:13:09,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5235. [2020-10-14 22:13:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5235 states. [2020-10-14 22:13:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 6347 transitions. [2020-10-14 22:13:09,211 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 6347 transitions. Word has length 412 [2020-10-14 22:13:09,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:09,212 INFO L479 AbstractCegarLoop]: Abstraction has 5235 states and 6347 transitions. [2020-10-14 22:13:09,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 6347 transitions. [2020-10-14 22:13:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2020-10-14 22:13:09,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:09,229 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:09,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:13:09,229 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:09,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:09,230 INFO L82 PathProgramCache]: Analyzing trace with hash -2055765159, now seen corresponding path program 1 times [2020-10-14 22:13:09,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:09,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905046511] [2020-10-14 22:13:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:09,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:09,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:09,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:10,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:13,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:13,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 517 [2020-10-14 22:13:13,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:13:13,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3833 [2020-10-14 22:13:13,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:13,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:13:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:13:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:13,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:13,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:13,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:13,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:13,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:13,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:13:13,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:13,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:13,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:13,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:13,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:13,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:13,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:13:13,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:13,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:13:13,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:13,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:13:13,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:13,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:13:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:13,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:13,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:13:13,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-14 22:13:13,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:13,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:13:13,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2020-10-14 22:13:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:13,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:13,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:13:13,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:13,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:13:13,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:13,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:13:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:13,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 215 proven. 114 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-14 22:13:14,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905046511] [2020-10-14 22:13:14,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:14,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:14,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682236862] [2020-10-14 22:13:14,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:14,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:14,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:14,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:14,475 INFO L87 Difference]: Start difference. First operand 5235 states and 6347 transitions. Second operand 7 states. [2020-10-14 22:13:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:19,460 INFO L93 Difference]: Finished difference Result 10936 states and 13626 transitions. [2020-10-14 22:13:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:13:19,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 503 [2020-10-14 22:13:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:19,485 INFO L225 Difference]: With dead ends: 10936 [2020-10-14 22:13:19,486 INFO L226 Difference]: Without dead ends: 5984 [2020-10-14 22:13:19,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:13:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2020-10-14 22:13:19,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 5930. [2020-10-14 22:13:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5930 states. [2020-10-14 22:13:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5930 states to 5930 states and 6860 transitions. [2020-10-14 22:13:19,643 INFO L78 Accepts]: Start accepts. Automaton has 5930 states and 6860 transitions. Word has length 503 [2020-10-14 22:13:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:19,643 INFO L479 AbstractCegarLoop]: Abstraction has 5930 states and 6860 transitions. [2020-10-14 22:13:19,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5930 states and 6860 transitions. [2020-10-14 22:13:19,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-10-14 22:13:19,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:19,685 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:19,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:13:19,686 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:19,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:19,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1780973697, now seen corresponding path program 1 times [2020-10-14 22:13:19,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:19,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645160088] [2020-10-14 22:13:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:19,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:20,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:24,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:24,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:24,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 710 [2020-10-14 22:13:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:13:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 22:13:24,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:24,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:13:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:13:24,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:24,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:24,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:24,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:24,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:24,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:24,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:13:24,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:24,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:24,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:25,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:25,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:25,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:25,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:13:25,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 22:13:25,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:25,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:13:25,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:25,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:13:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:25,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:25,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:25,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:13:25,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 22:13:25,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:25,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:25,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:13:25,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:13:25,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 22:13:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:25,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:25,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:25,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:13:25,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:25,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:13:25,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:25,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:13:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:25,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2020-10-14 22:13:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:25,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:25,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:25,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:13:25,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:13:25,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:25,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:25,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:25,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:13:25,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:25,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 298 proven. 208 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-10-14 22:13:26,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645160088] [2020-10-14 22:13:26,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:26,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:26,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444547680] [2020-10-14 22:13:26,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:26,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:26,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:26,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:26,086 INFO L87 Difference]: Start difference. First operand 5930 states and 6860 transitions. Second operand 7 states. [2020-10-14 22:13:30,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:30,143 INFO L93 Difference]: Finished difference Result 13588 states and 16200 transitions. [2020-10-14 22:13:30,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:13:30,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 694 [2020-10-14 22:13:30,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:30,168 INFO L225 Difference]: With dead ends: 13588 [2020-10-14 22:13:30,168 INFO L226 Difference]: Without dead ends: 8001 [2020-10-14 22:13:30,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 22:13:30,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8001 states. [2020-10-14 22:13:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8001 to 7643. [2020-10-14 22:13:30,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7643 states. [2020-10-14 22:13:30,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7643 states to 7643 states and 8782 transitions. [2020-10-14 22:13:30,445 INFO L78 Accepts]: Start accepts. Automaton has 7643 states and 8782 transitions. Word has length 694 [2020-10-14 22:13:30,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:30,446 INFO L479 AbstractCegarLoop]: Abstraction has 7643 states and 8782 transitions. [2020-10-14 22:13:30,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7643 states and 8782 transitions. [2020-10-14 22:13:30,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-10-14 22:13:30,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:30,464 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:13:30,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:13:30,465 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:30,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:30,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1058520737, now seen corresponding path program 1 times [2020-10-14 22:13:30,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:30,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618993761] [2020-10-14 22:13:30,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:30,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:30,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:31,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:32,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:35,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:35,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 838 [2020-10-14 22:13:35,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:13:35,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 22:13:35,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:35,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:13:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:13:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:13:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:35,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:35,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:35,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:35,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:35,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:35,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:13:35,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:35,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:13:35,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:35,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:35,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:35,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:36,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:36,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:13:36,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:13:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-14 22:13:36,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:36,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:13:36,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:36,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:13:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:36,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:36,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:36,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:13:36,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:36,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-14 22:13:36,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:36,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:36,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:36,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:13:36,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:13:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:13:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:37,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:37,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:37,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:13:37,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:37,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 22:13:37,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:37,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:13:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-14 22:13:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:37,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:37,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:37,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:13:37,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:37,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:13:37,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:37,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:13:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 413 proven. 274 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-10-14 22:13:37,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618993761] [2020-10-14 22:13:37,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:37,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:37,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573385614] [2020-10-14 22:13:37,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:37,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:37,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:37,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:37,745 INFO L87 Difference]: Start difference. First operand 7643 states and 8782 transitions. Second operand 7 states. [2020-10-14 22:13:41,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:41,193 INFO L93 Difference]: Finished difference Result 15401 states and 18127 transitions. [2020-10-14 22:13:41,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:13:41,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 822 [2020-10-14 22:13:41,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:41,223 INFO L225 Difference]: With dead ends: 15401 [2020-10-14 22:13:41,223 INFO L226 Difference]: Without dead ends: 8103 [2020-10-14 22:13:41,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:13:41,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8103 states. [2020-10-14 22:13:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8103 to 7982. [2020-10-14 22:13:41,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7982 states. [2020-10-14 22:13:41,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7982 states to 7982 states and 9143 transitions. [2020-10-14 22:13:41,440 INFO L78 Accepts]: Start accepts. Automaton has 7982 states and 9143 transitions. Word has length 822 [2020-10-14 22:13:41,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:41,441 INFO L479 AbstractCegarLoop]: Abstraction has 7982 states and 9143 transitions. [2020-10-14 22:13:41,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7982 states and 9143 transitions. [2020-10-14 22:13:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2020-10-14 22:13:41,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:41,472 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:41,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:13:41,472 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:41,473 INFO L82 PathProgramCache]: Analyzing trace with hash -252538310, now seen corresponding path program 1 times [2020-10-14 22:13:41,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:41,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158340592] [2020-10-14 22:13:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:41,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:42,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:44,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:46,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:46,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 874 [2020-10-14 22:13:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:13:46,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 22:13:46,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:46,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:46,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:46,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:13:46,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:13:46,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:46,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:46,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:46,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:46,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:46,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:46,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:13:46,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:46,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:46,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:46,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:46,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:46,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:46,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:46,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:46,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:13:46,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:13:46,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:46,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:13:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:46,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:13:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:47,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:47,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:47,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:13:47,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:47,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:13:47,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:47,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:47,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:13:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:47,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:13:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:47,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:47,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:47,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:13:47,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:47,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:13:47,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:47,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:13:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:47,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:47,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:13:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:47,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:13:47,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:47,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:13:47,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:47,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:13:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:47,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 22:13:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:47,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:47,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:47,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:13:47,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:47,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:13:47,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:47,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:13:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:47,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:48,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 376 proven. 367 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2020-10-14 22:13:48,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158340592] [2020-10-14 22:13:48,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:48,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:48,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492814754] [2020-10-14 22:13:48,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:48,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:48,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:48,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:48,115 INFO L87 Difference]: Start difference. First operand 7982 states and 9143 transitions. Second operand 7 states. [2020-10-14 22:13:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:52,186 INFO L93 Difference]: Finished difference Result 16664 states and 19217 transitions. [2020-10-14 22:13:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:13:52,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 856 [2020-10-14 22:13:52,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:52,214 INFO L225 Difference]: With dead ends: 16664 [2020-10-14 22:13:52,214 INFO L226 Difference]: Without dead ends: 9027 [2020-10-14 22:13:52,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:13:52,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9027 states. [2020-10-14 22:13:52,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9027 to 9013. [2020-10-14 22:13:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9013 states. [2020-10-14 22:13:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 10305 transitions. [2020-10-14 22:13:52,392 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 10305 transitions. Word has length 856 [2020-10-14 22:13:52,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:52,393 INFO L479 AbstractCegarLoop]: Abstraction has 9013 states and 10305 transitions. [2020-10-14 22:13:52,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:52,394 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 10305 transitions. [2020-10-14 22:13:52,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2020-10-14 22:13:52,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:52,423 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:52,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:13:52,424 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:52,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1141924813, now seen corresponding path program 1 times [2020-10-14 22:13:52,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:52,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460869013] [2020-10-14 22:13:52,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:52,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:53,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:56,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:57,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:57,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 877 [2020-10-14 22:13:57,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:13:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-14 22:13:57,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:57,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 22:13:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:13:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:57,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:57,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:57,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:57,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:57,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:13:57,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:57,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:57,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:57,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:57,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:57,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:13:57,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:13:57,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:57,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:57,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:57,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:13:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:58,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:58,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:13:58,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:58,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:13:58,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:58,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:58,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:58,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:58,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:13:58,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:58,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:13:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:58,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:58,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:13:58,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:13:58,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:58,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:13:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2020-10-14 22:13:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:58,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:58,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:58,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:13:58,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:58,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:13:58,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:58,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:13:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:58,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:58,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2020-10-14 22:13:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:58,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:58,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:58,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:13:58,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:58,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:13:58,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:58,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:58,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:13:58,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:58,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 478 proven. 208 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2020-10-14 22:13:58,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460869013] [2020-10-14 22:13:58,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:58,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:58,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849342376] [2020-10-14 22:13:58,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:58,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:58,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:58,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:58,760 INFO L87 Difference]: Start difference. First operand 9013 states and 10305 transitions. Second operand 7 states. [2020-10-14 22:14:02,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:02,740 INFO L93 Difference]: Finished difference Result 19402 states and 22641 transitions. [2020-10-14 22:14:02,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:14:02,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 859 [2020-10-14 22:14:02,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:02,776 INFO L225 Difference]: With dead ends: 19402 [2020-10-14 22:14:02,777 INFO L226 Difference]: Without dead ends: 10734 [2020-10-14 22:14:02,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:14:02,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2020-10-14 22:14:02,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 10714. [2020-10-14 22:14:02,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10714 states. [2020-10-14 22:14:03,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10714 states to 10714 states and 12485 transitions. [2020-10-14 22:14:03,001 INFO L78 Accepts]: Start accepts. Automaton has 10714 states and 12485 transitions. Word has length 859 [2020-10-14 22:14:03,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:03,003 INFO L479 AbstractCegarLoop]: Abstraction has 10714 states and 12485 transitions. [2020-10-14 22:14:03,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 10714 states and 12485 transitions. [2020-10-14 22:14:03,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2020-10-14 22:14:03,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:03,038 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 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 22:14:03,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:14:03,039 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:03,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash 58071104, now seen corresponding path program 1 times [2020-10-14 22:14:03,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:03,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872176292] [2020-10-14 22:14:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:03,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:03,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:06,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:07,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:08,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1050 [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:14:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:14:08,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:08,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:08,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:08,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:08,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:08,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:14:08,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:08,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:08,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:08,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:08,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:08,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:08,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:08,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:08,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:14:08,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:08,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:08,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:08,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:08,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:08,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:08,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:08,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:14:08,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:08,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:08,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:08,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:08,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:08,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:08,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:08,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:08,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:14:08,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:08,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:08,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:08,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:08,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:09,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:09,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:14:09,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:09,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:14:09,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:09,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:09,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:09,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:09,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:14:09,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:09,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:14:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:09,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:09,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:09,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:14:09,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:09,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 22:14:09,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:09,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 22:14:09,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 928 proven. 2 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2020-10-14 22:14:09,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872176292] [2020-10-14 22:14:09,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:09,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:14:09,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141348711] [2020-10-14 22:14:09,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:09,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:09,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:09,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:09,941 INFO L87 Difference]: Start difference. First operand 10714 states and 12485 transitions. Second operand 7 states. [2020-10-14 22:14:15,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:15,034 INFO L93 Difference]: Finished difference Result 23139 states and 26846 transitions. [2020-10-14 22:14:15,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:14:15,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1032 [2020-10-14 22:14:15,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:15,071 INFO L225 Difference]: With dead ends: 23139 [2020-10-14 22:14:15,071 INFO L226 Difference]: Without dead ends: 12345 [2020-10-14 22:14:15,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:14:15,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12345 states. [2020-10-14 22:14:15,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12345 to 10307. [2020-10-14 22:14:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10307 states. [2020-10-14 22:14:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10307 states to 10307 states and 11089 transitions. [2020-10-14 22:14:15,276 INFO L78 Accepts]: Start accepts. Automaton has 10307 states and 11089 transitions. Word has length 1032 [2020-10-14 22:14:15,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:15,282 INFO L479 AbstractCegarLoop]: Abstraction has 10307 states and 11089 transitions. [2020-10-14 22:14:15,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 10307 states and 11089 transitions. [2020-10-14 22:14:15,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2020-10-14 22:14:15,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:15,320 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 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] [2020-10-14 22:14:15,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:14:15,320 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:15,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:15,321 INFO L82 PathProgramCache]: Analyzing trace with hash -501349168, now seen corresponding path program 1 times [2020-10-14 22:14:15,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:15,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533526825] [2020-10-14 22:14:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:15,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:16,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:18,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:18,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:19,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:20,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:20,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1079 [2020-10-14 22:14:20,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:14:20,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 22:14:20,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:20,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:20,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:14:20,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:14:20,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:14:20,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:20,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:20,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:20,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:20,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:20,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:20,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:20,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:20,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:20,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:14:20,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:20,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:21,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:21,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:21,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:21,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:21,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:14:21,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:21,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:21,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:21,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:21,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:21,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:21,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:21,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:21,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:14:21,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:21,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:21,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:21,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:21,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:14:21,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:21,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:14:21,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:21,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:21,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:14:21,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:21,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:14:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:21,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:21,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:21,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:21,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:14:21,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:14:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:14:21,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:21,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:14:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:21,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:14:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:21,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:21,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:21,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:21,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:14:21,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:14:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:14:21,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:21,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 22:14:21,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 285 proven. 6 refuted. 0 times theorem prover too weak. 1925 trivial. 0 not checked. [2020-10-14 22:14:21,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533526825] [2020-10-14 22:14:21,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:21,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:14:21,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953034258] [2020-10-14 22:14:21,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:14:21,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:21,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:14:21,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:14:21,939 INFO L87 Difference]: Start difference. First operand 10307 states and 11089 transitions. Second operand 5 states. [2020-10-14 22:14:25,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:25,021 INFO L93 Difference]: Finished difference Result 22644 states and 24559 transitions. [2020-10-14 22:14:25,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:14:25,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1059 [2020-10-14 22:14:25,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:25,047 INFO L225 Difference]: With dead ends: 22644 [2020-10-14 22:14:25,047 INFO L226 Difference]: Without dead ends: 12682 [2020-10-14 22:14:25,063 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 22:14:25,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12682 states. [2020-10-14 22:14:25,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12682 to 12006. [2020-10-14 22:14:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12006 states. [2020-10-14 22:14:25,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12006 states to 12006 states and 13024 transitions. [2020-10-14 22:14:25,253 INFO L78 Accepts]: Start accepts. Automaton has 12006 states and 13024 transitions. Word has length 1059 [2020-10-14 22:14:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:25,254 INFO L479 AbstractCegarLoop]: Abstraction has 12006 states and 13024 transitions. [2020-10-14 22:14:25,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:14:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 12006 states and 13024 transitions. [2020-10-14 22:14:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2020-10-14 22:14:25,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:25,293 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:14:25,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:14:25,294 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:25,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:25,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1473572351, now seen corresponding path program 1 times [2020-10-14 22:14:25,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:25,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50776885] [2020-10-14 22:14:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:25,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:26,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:26,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:27,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:30,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:30,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1298 [2020-10-14 22:14:30,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:30,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 22:14:30,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:30,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-14 22:14:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:14:30,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:30,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:30,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:30,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:30,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:30,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:30,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:14:30,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:30,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:30,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:30,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:30,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:30,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:30,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:30,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:30,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:30,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:30,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:30,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:14:30,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:30,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:30,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:30,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:30,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:30,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:30,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:30,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:30,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:14:30,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:30,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:30,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:30,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:30,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:30,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:30,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:30,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:14:30,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:30,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:30,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:30,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:31,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:31,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:31,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:14:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:31,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:31,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:31,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:14:31,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:31,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:14:31,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:31,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:14:31,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:31,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:14:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:31,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:31,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:31,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:14:31,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:31,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:14:31,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:31,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:31,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:31,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:31,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:14:31,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:31,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 926 [2020-10-14 22:14:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:31,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:31,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:14:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:31,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-14 22:14:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:31,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:31,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:31,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:14:31,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:31,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:14:31,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:31,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:31,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:31,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:14:31,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:31,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3614 backedges. 971 proven. 248 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2020-10-14 22:14:32,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50776885] [2020-10-14 22:14:32,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:32,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:14:32,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329215474] [2020-10-14 22:14:32,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:32,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:32,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:32,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:32,169 INFO L87 Difference]: Start difference. First operand 12006 states and 13024 transitions. Second operand 7 states. [2020-10-14 22:14:36,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:36,493 INFO L93 Difference]: Finished difference Result 24022 states and 26077 transitions. [2020-10-14 22:14:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:14:36,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1274 [2020-10-14 22:14:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:36,520 INFO L225 Difference]: With dead ends: 24022 [2020-10-14 22:14:36,520 INFO L226 Difference]: Without dead ends: 12361 [2020-10-14 22:14:36,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:14:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12361 states. [2020-10-14 22:14:36,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12361 to 12008. [2020-10-14 22:14:36,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12008 states. [2020-10-14 22:14:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 12588 transitions. [2020-10-14 22:14:36,733 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 12588 transitions. Word has length 1274 [2020-10-14 22:14:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:36,734 INFO L479 AbstractCegarLoop]: Abstraction has 12008 states and 12588 transitions. [2020-10-14 22:14:36,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 12588 transitions. [2020-10-14 22:14:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1304 [2020-10-14 22:14:36,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:36,777 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:14:36,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:14:36,778 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:36,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:36,779 INFO L82 PathProgramCache]: Analyzing trace with hash -743771160, now seen corresponding path program 1 times [2020-10-14 22:14:36,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:36,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963498170] [2020-10-14 22:14:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:37,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:37,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1327 [2020-10-14 22:14:42,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:14:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 22:14:42,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:14:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:14:42,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:42,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:14:42,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:42,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:42,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:14:42,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:14:42,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:42,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:42,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:42,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:14:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:14:42,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:14:42,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:42,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:42,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:14:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:42,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:14:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:14:42,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:14:42,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:42,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:14:42,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:14:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:14:42,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 22:14:42,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:42,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:42,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:14:42,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-14 22:14:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:14:42,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:14:42,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:14:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-14 22:14:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:14:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:42,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:42,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 22:14:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:42,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:42,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:42,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:14:42,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:42,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:14:42,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:42,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:14:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:42,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3742 backedges. 866 proven. 389 refuted. 0 times theorem prover too weak. 2487 trivial. 0 not checked. [2020-10-14 22:14:43,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963498170] [2020-10-14 22:14:43,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:43,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:14:43,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829396064] [2020-10-14 22:14:43,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:43,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:43,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:43,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:43,722 INFO L87 Difference]: Start difference. First operand 12008 states and 12588 transitions. Second operand 7 states. [2020-10-14 22:14:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:49,397 INFO L93 Difference]: Finished difference Result 26072 states and 27472 transitions. [2020-10-14 22:14:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:14:49,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1303 [2020-10-14 22:14:49,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:49,437 INFO L225 Difference]: With dead ends: 26072 [2020-10-14 22:14:49,437 INFO L226 Difference]: Without dead ends: 14409 [2020-10-14 22:14:49,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:14:49,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14409 states. [2020-10-14 22:14:49,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14409 to 14379. [2020-10-14 22:14:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14379 states. [2020-10-14 22:14:49,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14379 states to 14379 states and 15078 transitions. [2020-10-14 22:14:49,694 INFO L78 Accepts]: Start accepts. Automaton has 14379 states and 15078 transitions. Word has length 1303 [2020-10-14 22:14:49,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:49,696 INFO L479 AbstractCegarLoop]: Abstraction has 14379 states and 15078 transitions. [2020-10-14 22:14:49,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:49,696 INFO L276 IsEmpty]: Start isEmpty. Operand 14379 states and 15078 transitions. [2020-10-14 22:14:49,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1365 [2020-10-14 22:14:49,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:49,738 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:14:49,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:14:49,738 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:49,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:49,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1052568841, now seen corresponding path program 1 times [2020-10-14 22:14:49,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:49,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812800003] [2020-10-14 22:14:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:50,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:50,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1388 [2020-10-14 22:14:55,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:14:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 22:14:55,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 22:14:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:14:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:55,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:55,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:55,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:55,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:14:55,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:55,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:55,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:55,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:55,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:14:55,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:55,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:14:55,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:55,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:55,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:55,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:55,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:14:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:55,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:14:55,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:55,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:14:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:55,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:14:55,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:55,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 22:14:55,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:14:55,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:55,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 661 [2020-10-14 22:14:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:55,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:55,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:55,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2020-10-14 22:14:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:14:55,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:14:55,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:14:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:55,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:55,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 874 [2020-10-14 22:14:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:55,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:55,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:14:55,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:55,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:14:55,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:55,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:14:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:55,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:56,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2020-10-14 22:14:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:56,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:56,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:56,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:14:56,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:14:56,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:56,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:14:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:56,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1126 [2020-10-14 22:14:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:56,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:56,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:56,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:14:56,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:56,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:14:56,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:56,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:14:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:14:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:14:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:14:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3871 backedges. 771 proven. 650 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2020-10-14 22:14:57,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812800003] [2020-10-14 22:14:57,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:14:57,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:14:57,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618157284] [2020-10-14 22:14:57,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:57,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:57,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:57,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:57,291 INFO L87 Difference]: Start difference. First operand 14379 states and 15078 transitions. Second operand 7 states. [2020-10-14 22:15:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:02,203 INFO L93 Difference]: Finished difference Result 28760 states and 30162 transitions. [2020-10-14 22:15:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:15:02,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1364 [2020-10-14 22:15:02,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:02,226 INFO L225 Difference]: With dead ends: 28760 [2020-10-14 22:15:02,226 INFO L226 Difference]: Without dead ends: 14726 [2020-10-14 22:15:02,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:15:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14726 states. [2020-10-14 22:15:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14726 to 14383. [2020-10-14 22:15:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14383 states. [2020-10-14 22:15:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14383 states to 14383 states and 15037 transitions. [2020-10-14 22:15:02,427 INFO L78 Accepts]: Start accepts. Automaton has 14383 states and 15037 transitions. Word has length 1364 [2020-10-14 22:15:02,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:02,428 INFO L479 AbstractCegarLoop]: Abstraction has 14383 states and 15037 transitions. [2020-10-14 22:15:02,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 14383 states and 15037 transitions. [2020-10-14 22:15:02,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1369 [2020-10-14 22:15:02,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:02,463 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 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 22:15:02,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:15:02,463 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:02,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:02,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1176987954, now seen corresponding path program 1 times [2020-10-14 22:15:02,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:02,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051300047] [2020-10-14 22:15:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:02,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:02,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:05,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:05,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:07,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:07,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1390 [2020-10-14 22:15:07,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:15:07,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5235 [2020-10-14 22:15:07,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:07,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:15:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:15:07,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:08,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:08,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:08,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:08,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:08,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:08,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:08,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:08,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:08,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:08,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:08,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:08,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:08,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:08,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:08,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:08,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:15:08,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:15:08,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:08,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:08,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:15:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:08,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:08,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:08,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:15:08,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:08,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:15:08,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:08,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:08,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:08,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:15:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:08,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:08,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:08,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:15:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:08,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:08,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:08,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:15:08,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:15:08,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:08,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:15:08,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:15:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:08,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:08,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:08,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:15:08,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:08,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 22:15:08,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:08,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:08,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:15:08,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 22:15:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:09,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:09,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:15:09,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:15:09,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:09,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:15:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:09,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-14 22:15:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:09,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:09,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:09,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:15:09,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:15:09,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:09,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:15:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3470 backedges. 1108 proven. 257 refuted. 0 times theorem prover too weak. 2105 trivial. 0 not checked. [2020-10-14 22:15:10,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051300047] [2020-10-14 22:15:10,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:10,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:15:10,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484017149] [2020-10-14 22:15:10,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:15:10,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:10,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:15:10,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:15:10,213 INFO L87 Difference]: Start difference. First operand 14383 states and 15037 transitions. Second operand 8 states. [2020-10-14 22:15:15,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:15,270 INFO L93 Difference]: Finished difference Result 28766 states and 30089 transitions. [2020-10-14 22:15:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:15:15,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1368 [2020-10-14 22:15:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:15,299 INFO L225 Difference]: With dead ends: 28766 [2020-10-14 22:15:15,300 INFO L226 Difference]: Without dead ends: 14728 [2020-10-14 22:15:15,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:15:15,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14728 states. [2020-10-14 22:15:15,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14728 to 14044. [2020-10-14 22:15:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14044 states. [2020-10-14 22:15:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14044 states to 14044 states and 14661 transitions. [2020-10-14 22:15:15,494 INFO L78 Accepts]: Start accepts. Automaton has 14044 states and 14661 transitions. Word has length 1368 [2020-10-14 22:15:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:15,495 INFO L479 AbstractCegarLoop]: Abstraction has 14044 states and 14661 transitions. [2020-10-14 22:15:15,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:15:15,496 INFO L276 IsEmpty]: Start isEmpty. Operand 14044 states and 14661 transitions. [2020-10-14 22:15:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1406 [2020-10-14 22:15:15,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:15,522 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 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] [2020-10-14 22:15:15,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:15:15,522 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:15,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:15,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2097423173, now seen corresponding path program 1 times [2020-10-14 22:15:15,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:15,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148262489] [2020-10-14 22:15:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:15,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:15,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:16,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:18,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:20,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1431 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:15:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:20,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:20,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:20,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:20,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:20,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:20,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:20,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:20,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:20,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:20,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:20,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:20,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:15:20,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:20,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:15:20,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:20,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:20,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:15:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:20,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:15:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:15:21,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:15:21,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:15:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:15:21,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:15:21,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:15:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:15:21,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:15:21,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:15:21,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:15:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:15:21,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 22:15:21,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:15:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-14 22:15:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:15:21,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:15:21,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:15:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:21,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1144 [2020-10-14 22:15:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:15:21,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:15:21,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:15:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:21,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1216 [2020-10-14 22:15:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:21,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:15:21,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:21,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:15:21,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:21,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:15:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4316 backedges. 1210 proven. 324 refuted. 0 times theorem prover too weak. 2782 trivial. 0 not checked. [2020-10-14 22:15:22,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148262489] [2020-10-14 22:15:22,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:22,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:22,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724305017] [2020-10-14 22:15:22,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:22,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:22,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:22,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:22,891 INFO L87 Difference]: Start difference. First operand 14044 states and 14661 transitions. Second operand 7 states. [2020-10-14 22:15:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:26,917 INFO L93 Difference]: Finished difference Result 28762 states and 30063 transitions. [2020-10-14 22:15:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:15:26,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1405 [2020-10-14 22:15:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:26,940 INFO L225 Difference]: With dead ends: 28762 [2020-10-14 22:15:26,940 INFO L226 Difference]: Without dead ends: 15063 [2020-10-14 22:15:26,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 22:15:26,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15063 states. [2020-10-14 22:15:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15063 to 14722. [2020-10-14 22:15:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14722 states. [2020-10-14 22:15:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14722 states to 14722 states and 15371 transitions. [2020-10-14 22:15:27,125 INFO L78 Accepts]: Start accepts. Automaton has 14722 states and 15371 transitions. Word has length 1405 [2020-10-14 22:15:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:27,126 INFO L479 AbstractCegarLoop]: Abstraction has 14722 states and 15371 transitions. [2020-10-14 22:15:27,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand 14722 states and 15371 transitions. [2020-10-14 22:15:27,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2020-10-14 22:15:27,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:27,145 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:27,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:15:27,146 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:27,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:27,146 INFO L82 PathProgramCache]: Analyzing trace with hash -2144640487, now seen corresponding path program 1 times [2020-10-14 22:15:27,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:27,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572983802] [2020-10-14 22:15:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:27,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:27,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:27,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:28,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:32,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:32,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1449 [2020-10-14 22:15:32,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:15:32,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:15:32,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:32,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 774 [2020-10-14 22:15:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:15:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:32,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:32,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:32,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:32,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:32,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:32,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:32,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:32,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:32,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:32,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:15:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:32,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:32,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:32,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:15:32,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:32,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:15:32,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:32,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:32,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:32,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:32,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:32,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:32,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:15:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:32,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:32,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:32,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:32,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 22:15:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:32,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:32,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:15:32,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:15:32,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:32,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:15:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:32,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 766 [2020-10-14 22:15:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:32,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:15:33,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 22:15:33,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:33,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:33,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:15:33,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 910 [2020-10-14 22:15:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:15:33,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:15:33,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:15:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1052 [2020-10-14 22:15:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:15:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:15:33,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:15:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1162 [2020-10-14 22:15:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:15:33,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:15:33,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:15:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:33,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1234 [2020-10-14 22:15:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:33,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:33,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:33,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:15:33,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:15:33,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:33,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:15:33,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:33,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4791 backedges. 1003 proven. 458 refuted. 0 times theorem prover too weak. 3330 trivial. 0 not checked. [2020-10-14 22:15:34,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572983802] [2020-10-14 22:15:34,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:34,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:34,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834030168] [2020-10-14 22:15:34,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:34,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:34,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:34,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:34,303 INFO L87 Difference]: Start difference. First operand 14722 states and 15371 transitions. Second operand 7 states. [2020-10-14 22:15:38,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:38,926 INFO L93 Difference]: Finished difference Result 35549 states and 37289 transitions. [2020-10-14 22:15:38,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:15:38,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1423 [2020-10-14 22:15:38,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:38,957 INFO L225 Difference]: With dead ends: 35549 [2020-10-14 22:15:38,958 INFO L226 Difference]: Without dead ends: 21172 [2020-10-14 22:15:38,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 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 22:15:38,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21172 states. [2020-10-14 22:15:39,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21172 to 19140. [2020-10-14 22:15:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19140 states. [2020-10-14 22:15:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19140 states to 19140 states and 20106 transitions. [2020-10-14 22:15:39,187 INFO L78 Accepts]: Start accepts. Automaton has 19140 states and 20106 transitions. Word has length 1423 [2020-10-14 22:15:39,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:39,188 INFO L479 AbstractCegarLoop]: Abstraction has 19140 states and 20106 transitions. [2020-10-14 22:15:39,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:39,188 INFO L276 IsEmpty]: Start isEmpty. Operand 19140 states and 20106 transitions. [2020-10-14 22:15:39,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1437 [2020-10-14 22:15:39,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:39,212 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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 22:15:39,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:15:39,212 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:39,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:39,213 INFO L82 PathProgramCache]: Analyzing trace with hash -2046187328, now seen corresponding path program 1 times [2020-10-14 22:15:39,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:39,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065587492] [2020-10-14 22:15:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:39,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:39,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking...