/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=NARROWEST --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/Problem01_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:59:18,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:59:18,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:59:18,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:59:18,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:59:18,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:59:18,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:59:18,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:59:18,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:59:18,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:59:18,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:59:18,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:59:18,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:59:18,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:59:18,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:59:18,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:59:18,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:59:18,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:59:18,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:59:18,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:59:18,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:59:18,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:59:18,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:59:18,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:59:18,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:59:18,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:59:18,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:59:18,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:59:18,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:59:18,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:59:18,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:59:18,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:59:18,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:59:18,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:59:18,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:59:18,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:59:18,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:59:18,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:59:18,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:59:18,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:59:18,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:59:18,597 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 [2020-10-13 05:59:18,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:59:18,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:59:18,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:59:18,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:59:18,642 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:59:18,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:59:18,642 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:59:18,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:59:18,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:59:18,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:59:18,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:59:18,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:59:18,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:59:18,645 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:59:18,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:59:18,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:59:18,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:59:18,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:59:18,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:59:18,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:59:18,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:59:18,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:59:18,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:59:18,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:59:18,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:59:18,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:59:18,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:59:18,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:59:18,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:59:18,648 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:59:18,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:59:18,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:59:19,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:59:19,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:59:19,003 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:59:19,004 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-10-13 05:59:19,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e58f3e36/b08e0a4ab39e4ad2af74c3e93c760ef2/FLAG0326b384a [2020-10-13 05:59:19,584 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:59:19,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-10-13 05:59:19,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e58f3e36/b08e0a4ab39e4ad2af74c3e93c760ef2/FLAG0326b384a [2020-10-13 05:59:19,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e58f3e36/b08e0a4ab39e4ad2af74c3e93c760ef2 [2020-10-13 05:59:19,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:59:19,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:59:19,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:59:19,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:59:19,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:59:19,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:59:19" (1/1) ... [2020-10-13 05:59:19,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:19, skipping insertion in model container [2020-10-13 05:59:19,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:59:19" (1/1) ... [2020-10-13 05:59:19,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:59:19,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:59:20,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:59:20,492 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:59:20,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:59:20,639 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:59:20,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20 WrapperNode [2020-10-13 05:59:20,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:59:20,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:59:20,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:59:20,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:59:20,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (1/1) ... [2020-10-13 05:59:20,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (1/1) ... [2020-10-13 05:59:20,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (1/1) ... [2020-10-13 05:59:20,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (1/1) ... [2020-10-13 05:59:20,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (1/1) ... [2020-10-13 05:59:20,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (1/1) ... [2020-10-13 05:59:20,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (1/1) ... [2020-10-13 05:59:20,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:59:20,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:59:20,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:59:20,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:59:20,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (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 [2020-10-13 05:59:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:59:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:59:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 05:59:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:59:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 05:59:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:59:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:59:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 05:59:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:59:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:59:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:59:22,053 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:59:22,053 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 05:59:22,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:59:22 BoogieIcfgContainer [2020-10-13 05:59:22,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:59:22,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:59:22,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:59:22,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:59:22,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:59:19" (1/3) ... [2020-10-13 05:59:22,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a87b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:59:22, skipping insertion in model container [2020-10-13 05:59:22,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:20" (2/3) ... [2020-10-13 05:59:22,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a87b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:59:22, skipping insertion in model container [2020-10-13 05:59:22,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:59:22" (3/3) ... [2020-10-13 05:59:22,078 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label06.c [2020-10-13 05:59:22,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:59:22,106 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:59:22,120 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:59:22,157 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:59:22,158 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:59:22,158 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:59:22,158 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:59:22,158 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:59:22,158 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:59:22,158 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:59:22,159 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:59:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 05:59:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 05:59:22,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:22,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:22,210 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:22,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1251834154, now seen corresponding path program 1 times [2020-10-13 05:59:22,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:22,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880339647] [2020-10-13 05:59:22,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:22,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:22,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:24,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:24,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 05:59:24,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:59:24,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1449 [2020-10-13 05:59:24,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:24,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 05:59:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 05:59:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 05:59:24,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 05:59:24,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:24,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:24,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 05:59:24,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:24,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 05:59:24,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:24,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:24,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880339647] [2020-10-13 05:59:24,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:59:24,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 05:59:24,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587137231] [2020-10-13 05:59:24,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 05:59:24,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:24,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 05:59:24,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 05:59:24,939 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 05:59:25,229 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-13 05:59:25,366 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-13 05:59:25,708 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 05:59:25,968 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 05:59:26,365 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 05:59:26,879 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-13 05:59:27,215 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-10-13 05:59:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:28,250 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 05:59:28,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 05:59:28,252 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2020-10-13 05:59:28,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:28,283 INFO L225 Difference]: With dead ends: 474 [2020-10-13 05:59:28,284 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 05:59:28,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:59:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 05:59:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 05:59:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 05:59:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 05:59:28,366 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 130 [2020-10-13 05:59:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:28,367 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 05:59:28,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 05:59:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 05:59:28,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-13 05:59:28,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:28,371 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 05:59:28,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:59:28,372 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:28,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:28,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1999212815, now seen corresponding path program 1 times [2020-10-13 05:59:28,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:28,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057339795] [2020-10-13 05:59:28,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:28,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:28,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:29,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:30,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:30,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-13 05:59:30,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:30,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1860 [2020-10-13 05:59:30,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 05:59:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 05:59:30,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:30,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:30,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:30,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:30,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:30,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 05:59:30,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:30,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:30,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:30,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:30,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:59:30,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:59:30,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:30,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 05:59:30,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 05:59:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:30,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057339795] [2020-10-13 05:59:30,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:30,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:30,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307784731] [2020-10-13 05:59:30,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:30,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:30,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:30,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:30,987 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 05:59:31,769 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:59:32,493 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 05:59:32,849 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 05:59:33,230 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 05:59:33,428 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 05:59:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:34,030 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 05:59:34,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 05:59:34,033 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 138 [2020-10-13 05:59:34,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:34,037 INFO L225 Difference]: With dead ends: 433 [2020-10-13 05:59:34,037 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 05:59:34,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 05:59:34,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 05:59:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 05:59:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 05:59:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 05:59:34,062 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 138 [2020-10-13 05:59:34,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:34,063 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 05:59:34,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:34,063 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 05:59:34,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-13 05:59:34,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:34,071 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 05:59:34,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:59:34,072 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:34,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:34,072 INFO L82 PathProgramCache]: Analyzing trace with hash -188990609, now seen corresponding path program 1 times [2020-10-13 05:59:34,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:34,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093252718] [2020-10-13 05:59:34,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:34,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:34,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:34,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:34,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:34,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-13 05:59:34,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-13 05:59:34,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 05:59:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:59:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 05:59:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:35,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:35,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:35,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:35,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:59:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:35,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:35,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:35,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:35,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 05:59:35,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 05:59:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:59:35,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:35,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093252718] [2020-10-13 05:59:35,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:35,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 05:59:35,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920062126] [2020-10-13 05:59:35,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 05:59:35,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:35,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 05:59:35,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 05:59:35,313 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 05:59:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:36,466 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 05:59:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 05:59:36,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-10-13 05:59:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:36,474 INFO L225 Difference]: With dead ends: 587 [2020-10-13 05:59:36,474 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 05:59:36,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 05:59:36,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 05:59:36,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 05:59:36,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 05:59:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 05:59:36,518 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 141 [2020-10-13 05:59:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:36,518 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 05:59:36,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 05:59:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 05:59:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-13 05:59:36,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:36,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:36,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:59:36,525 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:36,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:36,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1385252749, now seen corresponding path program 1 times [2020-10-13 05:59:36,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:36,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258981882] [2020-10-13 05:59:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:36,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:36,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:37,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:38,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:38,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 05:59:38,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:38,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1486 [2020-10-13 05:59:38,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:38,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:38,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 05:59:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 05:59:38,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:38,442 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 05:59:38,567 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 05:59:39,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:39,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:39,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:39,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:39,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:39,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:59:39,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:39,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:39,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:39,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:39,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:39,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:39,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 05:59:39,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 05:59:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:39,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258981882] [2020-10-13 05:59:39,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:39,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:39,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945471359] [2020-10-13 05:59:39,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:39,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:39,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:39,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:39,299 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 05:59:39,840 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 05:59:40,218 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-10-13 05:59:40,620 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-13 05:59:40,907 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2020-10-13 05:59:41,163 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-13 05:59:41,532 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2020-10-13 05:59:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:41,978 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 05:59:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 05:59:41,979 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 171 [2020-10-13 05:59:41,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:41,982 INFO L225 Difference]: With dead ends: 552 [2020-10-13 05:59:41,982 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 05:59:41,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:59:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 05:59:42,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 05:59:42,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 05:59:42,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 05:59:42,015 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 171 [2020-10-13 05:59:42,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:42,015 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 05:59:42,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:42,016 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 05:59:42,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-13 05:59:42,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:42,019 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:42,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 05:59:42,019 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:42,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:42,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1050688696, now seen corresponding path program 1 times [2020-10-13 05:59:42,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:42,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884194079] [2020-10-13 05:59:42,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:42,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:42,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:42,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:43,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:46,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:46,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-13 05:59:46,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 05:59:46,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4711 [2020-10-13 05:59:46,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 05:59:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 05:59:46,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:47,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:47,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:59:47,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:47,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:47,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:59:47,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:59:47,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 05:59:47,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 05:59:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 05:59:47,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 05:59:47,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:47,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 05:59:47,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 05:59:47,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884194079] [2020-10-13 05:59:47,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:47,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:47,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844669625] [2020-10-13 05:59:47,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:47,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:47,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:47,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:47,722 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 13 states. [2020-10-13 05:59:48,579 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-13 05:59:48,936 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 05:59:49,313 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 05:59:49,600 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 05:59:49,824 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 05:59:50,187 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 05:59:50,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:50,852 INFO L93 Difference]: Finished difference Result 648 states and 810 transitions. [2020-10-13 05:59:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 05:59:50,853 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 188 [2020-10-13 05:59:50,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:50,856 INFO L225 Difference]: With dead ends: 648 [2020-10-13 05:59:50,857 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 05:59:50,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 05:59:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 05:59:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2020-10-13 05:59:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-13 05:59:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-10-13 05:59:50,875 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 188 [2020-10-13 05:59:50,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:50,876 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-10-13 05:59:50,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-10-13 05:59:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 05:59:50,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:50,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:50,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 05:59:50,880 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:50,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:50,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1325292167, now seen corresponding path program 1 times [2020-10-13 05:59:50,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:50,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236595141] [2020-10-13 05:59:50,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:50,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:51,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:52,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:52,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 05:59:52,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:52,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1921 [2020-10-13 05:59:52,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 05:59:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 05:59:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:53,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:53,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:53,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:53,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:53,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:53,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:59:53,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:53,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:53,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:53,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 05:59:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 05:59:53,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 05:59:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:53,738 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:53,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236595141] [2020-10-13 05:59:53,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:53,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 05:59:53,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519008867] [2020-10-13 05:59:53,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 05:59:53,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:53,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 05:59:53,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 05:59:53,742 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 14 states. [2020-10-13 05:59:54,516 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-13 05:59:54,719 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-13 05:59:55,122 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-13 05:59:55,561 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-13 05:59:55,783 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 05:59:55,994 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-13 05:59:56,310 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-13 05:59:56,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:56,873 INFO L93 Difference]: Finished difference Result 787 states and 964 transitions. [2020-10-13 05:59:56,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 05:59:56,874 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 193 [2020-10-13 05:59:56,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:56,878 INFO L225 Difference]: With dead ends: 787 [2020-10-13 05:59:56,878 INFO L226 Difference]: Without dead ends: 442 [2020-10-13 05:59:56,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 05:59:56,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-13 05:59:56,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-13 05:59:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-13 05:59:56,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 508 transitions. [2020-10-13 05:59:56,904 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 508 transitions. Word has length 193 [2020-10-13 05:59:56,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:56,908 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 508 transitions. [2020-10-13 05:59:56,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 05:59:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 508 transitions. [2020-10-13 05:59:56,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-13 05:59:56,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:56,912 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, 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] [2020-10-13 05:59:56,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 05:59:56,912 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:56,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:56,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1711180922, now seen corresponding path program 1 times [2020-10-13 05:59:56,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:56,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579986746] [2020-10-13 05:59:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:56,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:57,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:57,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:57,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:59,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:59,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 05:59:59,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:59:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2806 [2020-10-13 05:59:59,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:59,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:59,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 05:59:59,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 05:59:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:00,277 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-10-13 06:00:00,429 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-13 06:00:00,562 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-10-13 06:00:00,705 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-13 06:00:00,858 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2020-10-13 06:00:00,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:00,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:00,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:00,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:00,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:00,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:00,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:00,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:00,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:00,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:00,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:00,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:01,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:01,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:00:01,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:01,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:00:01,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:00:01,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:00:01,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579986746] [2020-10-13 06:00:01,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:01,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:01,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45125245] [2020-10-13 06:00:01,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:01,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:01,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:01,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:01,142 INFO L87 Difference]: Start difference. First operand 442 states and 508 transitions. Second operand 13 states. [2020-10-13 06:00:01,811 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:00:02,158 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:00:02,518 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:00:02,741 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:00:03,072 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:00:03,401 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-13 06:00:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:03,794 INFO L93 Difference]: Finished difference Result 880 states and 1055 transitions. [2020-10-13 06:00:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:03,796 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 204 [2020-10-13 06:00:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:03,799 INFO L225 Difference]: With dead ends: 880 [2020-10-13 06:00:03,799 INFO L226 Difference]: Without dead ends: 504 [2020-10-13 06:00:03,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:00:03,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-13 06:00:03,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-13 06:00:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-13 06:00:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 576 transitions. [2020-10-13 06:00:03,817 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 576 transitions. Word has length 204 [2020-10-13 06:00:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:03,818 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 576 transitions. [2020-10-13 06:00:03,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 576 transitions. [2020-10-13 06:00:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-13 06:00:03,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:03,821 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, 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] [2020-10-13 06:00:03,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:00:03,821 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:03,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:03,822 INFO L82 PathProgramCache]: Analyzing trace with hash -709025194, now seen corresponding path program 1 times [2020-10-13 06:00:03,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:03,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4746809] [2020-10-13 06:00:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:03,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:03,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:04,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:04,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:06,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:06,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-13 06:00:06,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:06,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2288 [2020-10-13 06:00:06,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:06,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:00:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:06,545 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:00:06,741 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:00:06,966 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-13 06:00:07,193 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 39 [2020-10-13 06:00:07,433 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 37 [2020-10-13 06:00:07,684 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 35 [2020-10-13 06:00:07,911 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 32 [2020-10-13 06:00:07,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:07,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:07,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:07,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:07,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:07,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:08,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:08,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:00:08,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:08,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:08,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:08,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:00:08,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:08,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:08,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:08,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:08,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:08,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:00:08,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:00:08,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:00:08,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:08,328 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:00:08,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4746809] [2020-10-13 06:00:08,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:08,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:08,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977746244] [2020-10-13 06:00:08,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:08,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:08,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:08,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:08,331 INFO L87 Difference]: Start difference. First operand 504 states and 576 transitions. Second operand 13 states. [2020-10-13 06:00:09,036 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:00:09,408 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-13 06:00:09,796 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:00:09,952 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-13 06:00:10,202 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:00:10,483 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:00:10,818 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:00:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:11,119 INFO L93 Difference]: Finished difference Result 1002 states and 1186 transitions. [2020-10-13 06:00:11,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:00:11,120 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2020-10-13 06:00:11,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:11,123 INFO L225 Difference]: With dead ends: 1002 [2020-10-13 06:00:11,124 INFO L226 Difference]: Without dead ends: 547 [2020-10-13 06:00:11,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:00:11,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-13 06:00:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2020-10-13 06:00:11,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-13 06:00:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 621 transitions. [2020-10-13 06:00:11,147 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 621 transitions. Word has length 207 [2020-10-13 06:00:11,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:11,148 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 621 transitions. [2020-10-13 06:00:11,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 621 transitions. [2020-10-13 06:00:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-13 06:00:11,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:11,152 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, 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] [2020-10-13 06:00:11,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:00:11,152 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:11,153 INFO L82 PathProgramCache]: Analyzing trace with hash -656420486, now seen corresponding path program 1 times [2020-10-13 06:00:11,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:11,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380180338] [2020-10-13 06:00:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:11,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:11,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:11,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-13 06:00:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2818 [2020-10-13 06:00:14,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:00:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:14,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:14,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:14,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:14,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:14,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:00:14,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:14,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:14,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:00:14,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:14,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:00:14,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:00:14,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:00:15,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380180338] [2020-10-13 06:00:15,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:15,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:00:15,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038369950] [2020-10-13 06:00:15,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:00:15,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:15,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:00:15,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:00:15,089 INFO L87 Difference]: Start difference. First operand 542 states and 621 transitions. Second operand 14 states. [2020-10-13 06:00:15,865 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 06:00:16,093 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-13 06:00:16,654 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-13 06:00:16,824 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:00:17,197 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 06:00:17,466 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 06:00:17,918 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-13 06:00:18,554 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2020-10-13 06:00:18,780 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:00:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:19,138 INFO L93 Difference]: Finished difference Result 1134 states and 1377 transitions. [2020-10-13 06:00:19,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 06:00:19,139 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 210 [2020-10-13 06:00:19,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:19,143 INFO L225 Difference]: With dead ends: 1134 [2020-10-13 06:00:19,143 INFO L226 Difference]: Without dead ends: 624 [2020-10-13 06:00:19,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=276, Invalid=654, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:00:19,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-13 06:00:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 585. [2020-10-13 06:00:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:00:19,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:00:19,167 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 210 [2020-10-13 06:00:19,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:19,167 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:00:19,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:00:19,168 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:00:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-13 06:00:19,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:19,172 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:00:19,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:00:19,172 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:19,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1149426321, now seen corresponding path program 1 times [2020-10-13 06:00:19,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:19,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137127008] [2020-10-13 06:00:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:20,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:22,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:22,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-13 06:00:22,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3482 [2020-10-13 06:00:22,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:00:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:00:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:23,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:23,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:23,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:23,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:23,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:23,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:23,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:23,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:23,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:23,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:23,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:23,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:23,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:00:23,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:23,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:23,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:23,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:00:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:23,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:23,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:00:23,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:00:23,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:00:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:00:23,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137127008] [2020-10-13 06:00:23,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:23,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:23,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899883983] [2020-10-13 06:00:23,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:23,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:23,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:23,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:23,319 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:00:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:25,498 INFO L93 Difference]: Finished difference Result 1197 states and 1422 transitions. [2020-10-13 06:00:25,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:00:25,502 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 220 [2020-10-13 06:00:25,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:25,506 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:00:25,507 INFO L226 Difference]: Without dead ends: 678 [2020-10-13 06:00:25,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:00:25,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-13 06:00:25,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 593. [2020-10-13 06:00:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:00:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 682 transitions. [2020-10-13 06:00:25,531 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 682 transitions. Word has length 220 [2020-10-13 06:00:25,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:25,531 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 682 transitions. [2020-10-13 06:00:25,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 682 transitions. [2020-10-13 06:00:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-13 06:00:25,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:25,534 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:25,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:00:25,535 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:25,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:25,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1229266695, now seen corresponding path program 1 times [2020-10-13 06:00:25,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:25,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066481674] [2020-10-13 06:00:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:26,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:26,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:28,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:28,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-13 06:00:28,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2650 [2020-10-13 06:00:28,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:00:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:28,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:28,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:28,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:28,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:28,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:28,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:28,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:28,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:28,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:28,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:28,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:28,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:28,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:28,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:00:28,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:28,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:00:28,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:28,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:28,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:28,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:28,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:00:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:28,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:28,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:28,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:00:28,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:00:28,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:28,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:28,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:28,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:00:28,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:00:28,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066481674] [2020-10-13 06:00:28,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:28,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:28,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891733604] [2020-10-13 06:00:28,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:28,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:28,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:28,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:28,982 INFO L87 Difference]: Start difference. First operand 593 states and 682 transitions. Second operand 13 states. [2020-10-13 06:00:30,718 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:00:31,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:31,037 INFO L93 Difference]: Finished difference Result 1183 states and 1405 transitions. [2020-10-13 06:00:31,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:00:31,042 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 232 [2020-10-13 06:00:31,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:31,047 INFO L225 Difference]: With dead ends: 1183 [2020-10-13 06:00:31,047 INFO L226 Difference]: Without dead ends: 639 [2020-10-13 06:00:31,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-13 06:00:31,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 593. [2020-10-13 06:00:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:00:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 681 transitions. [2020-10-13 06:00:31,079 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 681 transitions. Word has length 232 [2020-10-13 06:00:31,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:31,080 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 681 transitions. [2020-10-13 06:00:31,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 681 transitions. [2020-10-13 06:00:31,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-13 06:00:31,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:31,083 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:31,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:00:31,083 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:31,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:31,084 INFO L82 PathProgramCache]: Analyzing trace with hash 297085646, now seen corresponding path program 1 times [2020-10-13 06:00:31,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:31,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456179274] [2020-10-13 06:00:31,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:31,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:31,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:31,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:32,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:32,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-13 06:00:32,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:32,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1629 [2020-10-13 06:00:32,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:00:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:00:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,121 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:00:33,250 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:00:33,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:33,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:33,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:33,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:00:33,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:00:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:00:33,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456179274] [2020-10-13 06:00:33,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:33,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:33,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716841220] [2020-10-13 06:00:33,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:33,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:33,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:33,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:33,923 INFO L87 Difference]: Start difference. First operand 593 states and 681 transitions. Second operand 13 states. [2020-10-13 06:00:34,868 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:00:35,186 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:00:35,511 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:00:36,156 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:00:36,496 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:00:36,827 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:00:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:37,394 INFO L93 Difference]: Finished difference Result 1184 states and 1408 transitions. [2020-10-13 06:00:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:00:37,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 244 [2020-10-13 06:00:37,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:37,402 INFO L225 Difference]: With dead ends: 1184 [2020-10-13 06:00:37,402 INFO L226 Difference]: Without dead ends: 610 [2020-10-13 06:00:37,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:00:37,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-13 06:00:37,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 608. [2020-10-13 06:00:37,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-13 06:00:37,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 697 transitions. [2020-10-13 06:00:37,430 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 697 transitions. Word has length 244 [2020-10-13 06:00:37,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:37,430 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 697 transitions. [2020-10-13 06:00:37,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:37,430 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 697 transitions. [2020-10-13 06:00:37,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-13 06:00:37,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:37,434 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:00:37,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:00:37,435 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:37,435 INFO L82 PathProgramCache]: Analyzing trace with hash 299943855, now seen corresponding path program 1 times [2020-10-13 06:00:37,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:37,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028386166] [2020-10-13 06:00:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:37,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-13 06:00:39,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1549 [2020-10-13 06:00:39,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:00:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:00:39,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:39,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:39,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:39,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:00:39,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:39,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:39,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:00:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:00:39,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:39,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:39,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:00:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:00:39,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:00:39,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:00:39,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:00:39,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028386166] [2020-10-13 06:00:39,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:39,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:39,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655569942] [2020-10-13 06:00:39,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:39,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:39,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:39,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:39,407 INFO L87 Difference]: Start difference. First operand 608 states and 697 transitions. Second operand 5 states. [2020-10-13 06:00:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:40,306 INFO L93 Difference]: Finished difference Result 1236 states and 1473 transitions. [2020-10-13 06:00:40,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:40,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2020-10-13 06:00:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:40,309 INFO L225 Difference]: With dead ends: 1236 [2020-10-13 06:00:40,309 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:00:40,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:40,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:00:40,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:00:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:00:40,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:00:40,320 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 246 [2020-10-13 06:00:40,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:40,320 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:00:40,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:40,320 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:00:40,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-13 06:00:40,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:40,322 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:40,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:00:40,322 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:40,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:40,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1829525811, now seen corresponding path program 1 times [2020-10-13 06:00:40,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:40,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494836320] [2020-10-13 06:00:40,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:40,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:40,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:41,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:41,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:43,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:45,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:45,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-13 06:00:45,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:00:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4785 [2020-10-13 06:00:45,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:00:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:00:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:45,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:45,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:45,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:45,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:45,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:45,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:45,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:45,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:45,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:45,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:45,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:45,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:00:45,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:45,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:45,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:45,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:45,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:45,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:45,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:45,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:45,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:45,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:45,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:45,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:45,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:45,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:45,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:45,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:00:45,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:00:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:00:45,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494836320] [2020-10-13 06:00:45,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:45,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:45,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925446787] [2020-10-13 06:00:45,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:45,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:45,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:45,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:45,814 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:00:46,678 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:00:46,919 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:00:47,139 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:00:47,515 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:00:47,843 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:00:48,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:48,350 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:00:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:00:48,350 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 257 [2020-10-13 06:00:48,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:48,354 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:00:48,354 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:00:48,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:00:48,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:00:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:00:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:00:48,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:00:48,366 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 257 [2020-10-13 06:00:48,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:48,366 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:00:48,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:48,367 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:00:48,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-13 06:00:48,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:48,369 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:48,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:00:48,369 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:48,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:48,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1345630906, now seen corresponding path program 1 times [2020-10-13 06:00:48,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:48,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179901552] [2020-10-13 06:00:48,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:48,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:48,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-13 06:00:49,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-13 06:00:49,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:00:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:00:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:49,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:49,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:49,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:00:49,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:49,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:49,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:00:49,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:49,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:00:49,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:00:49,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:00:49,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:00:49,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179901552] [2020-10-13 06:00:49,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:49,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:49,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625345251] [2020-10-13 06:00:49,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:49,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:49,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:49,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:49,999 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:00:50,437 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-13 06:00:51,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:51,095 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:00:51,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:51,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-10-13 06:00:51,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:51,098 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:00:51,099 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:00:51,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:51,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:00:51,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:00:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:00:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:00:51,114 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 269 [2020-10-13 06:00:51,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:51,114 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:00:51,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:51,115 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:00:51,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-13 06:00:51,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:51,117 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:51,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:00:51,117 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:51,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:51,118 INFO L82 PathProgramCache]: Analyzing trace with hash -983432982, now seen corresponding path program 1 times [2020-10-13 06:00:51,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:51,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118073588] [2020-10-13 06:00:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:52,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 06:00:52,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:52,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 949 [2020-10-13 06:00:52,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:52,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:52,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:00:52,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:00:52,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:52,713 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-10-13 06:00:52,997 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2020-10-13 06:00:53,285 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 53 [2020-10-13 06:00:53,522 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-10-13 06:00:53,743 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2020-10-13 06:00:53,948 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 41 [2020-10-13 06:00:54,141 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-13 06:00:54,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:54,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:54,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:54,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:00:54,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:54,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:00:54,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:54,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:54,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:54,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:00:54,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:00:54,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:00:54,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118073588] [2020-10-13 06:00:54,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:54,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:54,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452357716] [2020-10-13 06:00:54,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:54,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:54,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:54,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:54,787 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:00:55,417 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:00:55,663 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:00:56,160 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2020-10-13 06:00:56,549 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 113 [2020-10-13 06:00:56,942 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 110 [2020-10-13 06:00:57,282 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2020-10-13 06:00:57,732 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 102 [2020-10-13 06:00:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:58,014 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:00:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:58,015 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 272 [2020-10-13 06:00:58,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:58,018 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:00:58,018 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:00:58,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:58,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:00:58,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:00:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:00:58,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:00:58,031 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 272 [2020-10-13 06:00:58,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:58,031 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:00:58,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:58,032 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:00:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-13 06:00:58,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:58,034 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:58,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:00:58,034 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:58,035 INFO L82 PathProgramCache]: Analyzing trace with hash 289725158, now seen corresponding path program 1 times [2020-10-13 06:00:58,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:58,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337711051] [2020-10-13 06:00:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:58,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:58,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-13 06:00:58,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 785 [2020-10-13 06:00:58,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:00:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:00:58,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:58,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:58,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:58,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:58,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:58,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:58,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:58,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:59,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:59,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:59,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:59,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:00:59,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:00:59,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337711051] [2020-10-13 06:00:59,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:59,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:59,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207253809] [2020-10-13 06:00:59,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:59,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:59,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:59,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:59,224 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 5 states. [2020-10-13 06:01:00,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:00,094 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:01:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:00,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-13 06:01:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:00,097 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:01:00,097 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:00,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:00,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:01:00,111 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 274 [2020-10-13 06:01:00,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:00,112 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:01:00,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:00,112 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:01:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-13 06:01:00,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:00,115 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:00,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:01:00,115 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:00,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:00,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1412913811, now seen corresponding path program 1 times [2020-10-13 06:01:00,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:00,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539191731] [2020-10-13 06:01:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-13 06:01:00,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-13 06:01:00,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:01:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:01:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:00,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:00,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:00,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:00,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:01:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:00,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:01:00,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:00,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:00,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:00,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:00,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:01:00,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:01:00,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:01:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:01:01,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539191731] [2020-10-13 06:01:01,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:01,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:01,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071210536] [2020-10-13 06:01:01,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:01,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:01,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:01,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:01,260 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 5 states. [2020-10-13 06:01:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:02,110 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:01:02,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:02,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-10-13 06:01:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:02,112 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:01:02,112 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:02,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:02,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:01:02,127 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 292 [2020-10-13 06:01:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:02,128 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:01:02,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:01:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-13 06:01:02,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:02,130 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:02,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:01:02,130 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:02,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:02,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1161457306, now seen corresponding path program 1 times [2020-10-13 06:01:02,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:02,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97735688] [2020-10-13 06:01:02,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:02,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:02,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:02,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:02,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-13 06:01:02,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:02,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-10-13 06:01:02,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:01:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:01:02,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:03,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:03,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:03,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:01:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:03,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:01:03,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:03,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:03,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:03,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:03,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:03,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:03,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:03,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:03,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:03,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:03,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:03,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:01:03,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:03,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:01:03,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:01:03,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:01:03,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97735688] [2020-10-13 06:01:03,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:03,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:03,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938248810] [2020-10-13 06:01:03,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:03,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:03,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:03,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:03,329 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:01:04,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:04,119 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:01:04,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:04,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 291 [2020-10-13 06:01:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:04,122 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:01:04,122 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:04,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:04,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:04,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:04,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:01:04,134 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 291 [2020-10-13 06:01:04,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:04,135 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:01:04,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:01:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-13 06:01:04,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:04,137 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:04,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:01:04,138 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:04,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:04,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1477439095, now seen corresponding path program 1 times [2020-10-13 06:01:04,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:04,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508505038] [2020-10-13 06:01:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:05,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1420 [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:01:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,325 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2020-10-13 06:01:06,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:06,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:06,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:06,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:06,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:06,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:06,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:06,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:06,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:06,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:06,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:01:06,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:01:06,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:01:06,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:01:06,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508505038] [2020-10-13 06:01:06,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:06,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:06,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946204276] [2020-10-13 06:01:06,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:06,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:06,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:06,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:06,843 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:01:07,639 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:01:07,963 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:01:08,212 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:01:08,503 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:01:08,818 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:01:09,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:09,094 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:01:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:09,095 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 301 [2020-10-13 06:01:09,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:09,097 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:01:09,098 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:09,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:09,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:09,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:01:09,113 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 301 [2020-10-13 06:01:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:09,113 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:01:09,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:01:09,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-13 06:01:09,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:09,116 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:09,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:01:09,116 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:09,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:09,117 INFO L82 PathProgramCache]: Analyzing trace with hash -981950818, now seen corresponding path program 1 times [2020-10-13 06:01:09,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:09,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435511109] [2020-10-13 06:01:09,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-13 06:01:09,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-13 06:01:09,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:01:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:01:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:09,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:09,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:09,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:09,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:09,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:09,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:09,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:09,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:09,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:09,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:09,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:09,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:09,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:09,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:09,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:09,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:09,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:09,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:09,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:09,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:01:09,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:09,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:01:09,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:01:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:01:10,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435511109] [2020-10-13 06:01:10,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:10,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:01:10,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256686402] [2020-10-13 06:01:10,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:01:10,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:10,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:01:10,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:10,153 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 6 states. [2020-10-13 06:01:11,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:11,015 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:01:11,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:11,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 310 [2020-10-13 06:01:11,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:11,018 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:01:11,018 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:11,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:11,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:01:11,029 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 310 [2020-10-13 06:01:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:11,030 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:01:11,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:01:11,030 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:01:11,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-13 06:01:11,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:11,032 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:11,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:01:11,033 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:11,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:11,033 INFO L82 PathProgramCache]: Analyzing trace with hash 91007131, now seen corresponding path program 1 times [2020-10-13 06:01:11,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:11,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661723067] [2020-10-13 06:01:11,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-13 06:01:11,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:11,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-13 06:01:11,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:01:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:01:11,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:11,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:11,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:11,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:11,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:11,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:11,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:11,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:11,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:11,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:11,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:11,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:11,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:11,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:11,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:11,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:11,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:11,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:11,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:11,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:11,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:11,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:11,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:01:11,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:01:11,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:01:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,093 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:01:12,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661723067] [2020-10-13 06:01:12,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:12,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:01:12,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183866607] [2020-10-13 06:01:12,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:01:12,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:12,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:01:12,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:12,096 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 7 states. [2020-10-13 06:01:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:13,152 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:01:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:13,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2020-10-13 06:01:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:13,158 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:01:13,158 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:13,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:01:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:01:13,171 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 315 [2020-10-13 06:01:13,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:13,171 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:01:13,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:01:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:01:13,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-13 06:01:13,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:13,175 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:13,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:01:13,175 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:13,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:13,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1255404495, now seen corresponding path program 1 times [2020-10-13 06:01:13,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:13,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693006130] [2020-10-13 06:01:13,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:14,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:15,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2073 [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:01:15,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:15,885 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2020-10-13 06:01:16,037 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2020-10-13 06:01:16,191 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2020-10-13 06:01:16,368 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2020-10-13 06:01:16,524 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 37 [2020-10-13 06:01:16,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:16,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:16,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:16,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:16,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:16,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:16,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:16,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:16,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:01:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:01:16,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693006130] [2020-10-13 06:01:16,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:16,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:16,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815869625] [2020-10-13 06:01:16,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:16,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:16,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:16,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:16,907 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 13 states. [2020-10-13 06:01:17,573 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:01:17,898 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-13 06:01:18,179 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-13 06:01:18,360 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-10-13 06:01:18,606 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:01:18,866 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:01:19,294 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-10-13 06:01:19,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:19,810 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:01:19,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:01:19,812 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 321 [2020-10-13 06:01:19,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:19,815 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:01:19,815 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:01:19,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:01:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:01:19,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:01:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:01:19,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:01:19,829 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 321 [2020-10-13 06:01:19,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:19,829 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:01:19,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:01:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 06:01:19,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:19,832 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:01:19,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:01:19,833 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:19,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:19,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1659208210, now seen corresponding path program 1 times [2020-10-13 06:01:19,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:19,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418324436] [2020-10-13 06:01:19,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-13 06:01:20,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:20,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-10-13 06:01:20,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:01:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:01:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:20,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:20,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:20,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:20,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:20,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:20,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:01:20,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:20,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:01:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:01:20,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:20,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:20,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:01:20,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:01:20,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418324436] [2020-10-13 06:01:20,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:20,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:20,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471915437] [2020-10-13 06:01:20,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:20,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:20,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:20,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:20,973 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:01:21,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:21,749 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:01:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:21,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 326 [2020-10-13 06:01:21,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:21,753 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:01:21,753 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:01:21,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:21,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:01:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:01:21,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:01:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:01:21,765 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 326 [2020-10-13 06:01:21,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:21,766 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:01:21,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:01:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-13 06:01:21,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:21,769 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:21,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:01:21,769 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:21,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:21,770 INFO L82 PathProgramCache]: Analyzing trace with hash 651793014, now seen corresponding path program 1 times [2020-10-13 06:01:21,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:21,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373861941] [2020-10-13 06:01:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:21,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:21,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:22,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-13 06:01:22,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:22,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-10-13 06:01:22,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:01:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:01:22,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:22,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:22,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:22,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:22,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:22,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:22,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:22,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:22,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:22,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:22,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:22,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:22,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:22,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:22,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:22,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:22,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:22,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:22,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:22,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:22,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:01:22,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:22,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:01:22,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:01:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:01:23,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373861941] [2020-10-13 06:01:23,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:23,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:23,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415046947] [2020-10-13 06:01:23,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:23,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:23,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:23,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:23,018 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:01:23,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:23,821 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:01:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:23,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2020-10-13 06:01:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:23,825 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:01:23,825 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:01:23,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:23,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:01:23,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:01:23,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:01:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:01:23,839 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 330 [2020-10-13 06:01:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:23,840 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:01:23,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:23,840 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:01:23,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-13 06:01:23,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:23,847 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:01:23,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:01:23,847 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:23,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1269053014, now seen corresponding path program 1 times [2020-10-13 06:01:23,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:23,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602539427] [2020-10-13 06:01:23,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:24,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:24,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:26,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:26,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-13 06:01:26,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:26,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2412 [2020-10-13 06:01:26,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:01:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:01:26,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:26,751 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:01:26,884 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-13 06:01:27,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:27,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:27,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:27,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:27,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:27,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:27,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:27,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:27,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:27,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:01:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:01:27,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:27,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:01:27,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:01:27,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602539427] [2020-10-13 06:01:27,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:27,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:27,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779354288] [2020-10-13 06:01:27,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:27,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:27,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:27,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:27,711 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:01:28,246 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:01:28,405 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:01:28,586 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:01:28,767 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:01:28,912 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 06:01:29,153 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:01:29,379 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:01:29,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:29,764 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:01:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:29,769 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 339 [2020-10-13 06:01:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:29,771 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:01:29,771 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:01:29,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:01:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:01:29,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:01:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:01:29,785 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 339 [2020-10-13 06:01:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:29,785 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:01:29,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:01:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-13 06:01:29,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:29,788 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 06:01:29,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:01:29,789 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:29,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:29,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2014468553, now seen corresponding path program 1 times [2020-10-13 06:01:29,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:29,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168234453] [2020-10-13 06:01:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:29,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-13 06:01:30,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-10-13 06:01:30,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:01:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:01:30,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:30,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:30,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:30,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:30,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:30,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:30,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:30,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:30,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:30,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:30,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:01:30,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:01:30,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:30,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:01:30,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:01:31,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168234453] [2020-10-13 06:01:31,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:31,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:01:31,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677578636] [2020-10-13 06:01:31,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:01:31,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:31,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:01:31,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:31,019 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 7 states. [2020-10-13 06:01:31,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:31,946 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:01:31,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:31,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2020-10-13 06:01:31,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:31,950 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:01:31,950 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:31,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:01:31,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:01:31,962 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 342 [2020-10-13 06:01:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:31,963 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:01:31,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:01:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:01:31,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-13 06:01:31,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:31,966 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:01:31,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:01:31,966 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:31,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:31,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1270120770, now seen corresponding path program 1 times [2020-10-13 06:01:31,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:31,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590419114] [2020-10-13 06:01:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:32,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:35,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:35,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-13 06:01:35,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3006 [2020-10-13 06:01:35,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:01:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:01:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:35,621 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2020-10-13 06:01:35,769 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 41 [2020-10-13 06:01:35,923 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 39 [2020-10-13 06:01:36,072 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 37 [2020-10-13 06:01:36,215 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-13 06:01:36,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:36,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:36,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:36,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:36,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:36,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:36,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:36,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:36,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:36,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:36,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:36,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:36,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:36,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:36,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:36,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:36,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:36,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:36,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:36,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:36,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:36,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:36,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:36,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:36,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:36,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:01:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:36,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:01:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:01:36,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590419114] [2020-10-13 06:01:36,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:36,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:36,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159967861] [2020-10-13 06:01:36,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:36,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:36,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:36,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:36,709 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:01:37,495 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:01:37,834 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-10-13 06:01:38,006 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-13 06:01:38,252 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-10-13 06:01:38,584 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:01:38,853 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:01:39,175 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:01:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:39,550 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:01:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:39,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 344 [2020-10-13 06:01:39,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:39,554 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:01:39,555 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:01:39,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:01:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:01:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:01:39,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:01:39,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:01:39,569 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 344 [2020-10-13 06:01:39,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:39,569 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:01:39,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:39,569 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:01:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-13 06:01:39,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:39,572 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:39,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:01:39,572 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:39,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:39,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1562367050, now seen corresponding path program 1 times [2020-10-13 06:01:39,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:39,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619237168] [2020-10-13 06:01:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:39,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:39,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:39,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1952 [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:01:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:41,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:41,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:41,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:41,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:01:41,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:41,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:01:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:01:41,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:01:41,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:01:41,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:01:41,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619237168] [2020-10-13 06:01:41,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:41,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:41,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443340587] [2020-10-13 06:01:41,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:41,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:41,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:41,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:41,976 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:01:42,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:42,753 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:01:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:42,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 345 [2020-10-13 06:01:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:42,757 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:01:42,757 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:01:42,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:42,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:01:42,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:01:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:01:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:01:42,771 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 345 [2020-10-13 06:01:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:42,772 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:01:42,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:01:42,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-13 06:01:42,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:42,775 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 06:01:42,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:01:42,775 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:42,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:42,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1756828539, now seen corresponding path program 1 times [2020-10-13 06:01:42,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:42,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960044885] [2020-10-13 06:01:42,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:42,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:42,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-13 06:01:44,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:44,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1208 [2020-10-13 06:01:44,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:01:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:01:44,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:44,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:44,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:44,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:44,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:44,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:44,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:44,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:44,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:44,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:44,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:44,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:44,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:44,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:44,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:44,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:44,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:44,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:44,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:44,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:44,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:44,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:44,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:44,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:44,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:44,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:44,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:01:44,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:01:44,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:01:44,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:01:44,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960044885] [2020-10-13 06:01:44,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:44,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:44,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931665369] [2020-10-13 06:01:44,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:44,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:44,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:44,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:44,595 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 5 states. [2020-10-13 06:01:45,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:45,457 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:01:45,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:45,458 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 344 [2020-10-13 06:01:45,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:45,460 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:01:45,460 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:01:45,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:01:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:01:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:01:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:01:45,471 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 344 [2020-10-13 06:01:45,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:45,471 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:01:45,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:01:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-13 06:01:45,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:45,474 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:45,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:01:45,474 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:45,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:45,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2031384174, now seen corresponding path program 1 times [2020-10-13 06:01:45,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:45,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539280148] [2020-10-13 06:01:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:45,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 386 [2020-10-13 06:01:46,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:46,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 811 [2020-10-13 06:01:46,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:46,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:01:46,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:01:46,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:46,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:46,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:01:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:01:46,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:01:46,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539280148] [2020-10-13 06:01:46,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:46,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:46,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959673229] [2020-10-13 06:01:46,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:46,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:46,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:46,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:46,842 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 5 states. [2020-10-13 06:01:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:47,443 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:01:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:47,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 366 [2020-10-13 06:01:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:47,444 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:01:47,445 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:01:47,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:47,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:01:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:01:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:01:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:01:47,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 366 [2020-10-13 06:01:47,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:47,448 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:01:47,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:01:47,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:01:47,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:01:47,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:01:48,026 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-10-13 06:01:48,133 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 157 [2020-10-13 06:01:54,531 WARN L193 SmtUtils]: Spent 6.28 s on a formula simplification. DAG size of input: 366 DAG size of output: 272 [2020-10-13 06:01:56,407 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 190 DAG size of output: 155 [2020-10-13 06:01:57,852 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 155 DAG size of output: 120 [2020-10-13 06:01:57,856 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:01:57,857 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:01:57,857 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:01:57,857 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:01:57,857 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:01:57,857 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,857 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:01:57,858 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,859 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:01:57,860 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 548) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:01:57,861 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:01:57,862 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,863 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:01:57,864 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,865 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:01:57,866 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:01:57,867 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:01:57,868 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,869 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:01:57,870 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:01:57,871 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse72 (= |old(~a21~0)| 1)) (.cse52 (= |old(~a7~0)| 1)) (.cse50 (= ~a16~0 4)) (.cse80 (= ~a7~0 0)) (.cse45 (= |old(~a20~0)| 1)) (.cse46 (= |old(~a17~0)| 1)) (.cse57 (not (= |calculate_output_#in~input| 3))) (.cse58 (not (= |calculate_output_#in~input| 2))) (.cse76 (not (= |calculate_output_#in~input| 1))) (.cse59 (not (= |calculate_output_#in~input| 5))) (.cse60 (not (= |calculate_output_#in~input| 6))) (.cse83 (= 14 ~a8~0)) (.cse79 (= 5 ~a16~0)) (.cse5 (<= ~a16~0 4)) (.cse29 (= ~a8~0 |old(~a8~0)|)) (.cse6 (<= 4 ~a16~0)) (.cse30 (<= ~a21~0 1)) (.cse31 (<= 1 ~a21~0)) (.cse48 (= ~a21~0 1)) (.cse73 (= ~a8~0 15)) (.cse75 (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4)))) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (< 12 ~a8~0)) (.cse3 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse28 (= ~a16~0 |old(~a16~0)|)) (.cse7 (<= ~a8~0 13)) (.cse33 (not (<= |old(~a21~0)| 0))) (.cse20 (not (<= |old(~a7~0)| 0)))) (let ((.cse14 (not (< 0 |old(~a17~0)|))) (.cse32 (not (<= 5 |old(~a16~0)|))) (.cse35 (not (<= |old(~a16~0)| 5))) (.cse38 (and .cse20 (not (<= 2 |old(~a7~0)|)))) (.cse42 (<= ~a8~0 15)) (.cse43 (<= 15 ~a8~0)) (.cse39 (not (<= |old(~a8~0)| 15))) (.cse41 (not (<= 15 |old(~a8~0)|))) (.cse8 (and .cse33 (not (<= 2 |old(~a21~0)|)))) (.cse12 (not (< 0 |old(~a7~0)|))) (.cse26 (not (<= |old(~a16~0)| 6))) (.cse36 (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse28 .cse7)) (.cse16 (not (< 12 |old(~a8~0)|))) (.cse37 (not (< 0 |old(~a20~0)|))) (.cse19 (not (<= |old(~a20~0)| 0))) (.cse44 (not (= |old(~a8~0)| 13))) (.cse49 (= ~a8~0 13)) (.cse74 (= ~a17~0 1)) (.cse34 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) .cse75 (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse53 (not (= 6 |old(~a16~0)|))) (.cse54 (and .cse0 .cse1 .cse48 .cse4 .cse28 .cse73)) (.cse21 (not (<= |old(~a21~0)| 1))) (.cse22 (not (<= 1 |old(~a17~0)|))) (.cse69 (and (<= 1 ~a7~0) .cse1 .cse4 .cse5 .cse29 .cse6 .cse30 .cse31 (<= ~a7~0 1))) (.cse10 (not (<= |old(~a7~0)| 1))) (.cse9 (not (<= |old(~a16~0)| 4))) (.cse23 (not (<= 13 |old(~a8~0)|))) (.cse11 (not (<= |old(~a17~0)| 1))) (.cse24 (not (<= 1 |old(~a20~0)|))) (.cse25 (not (<= |old(~a20~0)| 1))) (.cse13 (not (<= 4 |old(~a16~0)|))) (.cse68 (not (<= 1 |old(~a7~0)|))) (.cse27 (not (<= 1 |old(~a21~0)|))) (.cse15 (not (<= |old(~a8~0)| 13))) (.cse77 (and .cse0 .cse1 .cse48 .cse4 .cse83 .cse79)) (.cse62 (and .cse0 .cse1 .cse48 .cse4 .cse73 .cse79)) (.cse17 (and .cse57 .cse58 (not (= |calculate_output_#in~input| 4)) .cse76 .cse59 .cse60)) (.cse65 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse81 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse63 (not (= 5 |old(~a16~0)|))) (.cse70 (not .cse46)) (.cse55 (not .cse45)) (.cse66 (and .cse1 .cse48 .cse4 .cse83 .cse50 .cse80)) (.cse67 (not (= |old(~a7~0)| 0))) (.cse71 (not .cse52)) (.cse78 (not (= 0 |old(~a20~0)|))) (.cse82 (and .cse0 .cse1 .cse48 .cse4 .cse73 .cse50)) (.cse56 (not (= 15 |old(~a8~0)|))) (.cse61 (not (= 0 |old(~a17~0)|))) (.cse64 (not (= 14 |old(~a8~0)|))) (.cse40 (not (<= |old(~a17~0)| 0))) (.cse47 (not .cse72)) (.cse18 (not (= ~a12~0 8))) (.cse51 (not (= 4 |old(~a16~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (or .cse20 .cse21 .cse22 .cse23 .cse11 .cse24 .cse25 .cse26 .cse27 .cse15 (and .cse0 .cse1 .cse4 .cse28 .cse29 .cse30 .cse31) (not (<= 6 |old(~a16~0)|)) .cse18) (or .cse32 .cse10 .cse11 .cse25 .cse12 .cse14 .cse33 .cse34 .cse35 .cse36 .cse15 .cse16 .cse18 .cse37) (or .cse38 .cse32 .cse39 .cse21 .cse40 .cse25 .cse35 .cse41 .cse27 (and .cse0 .cse1 .cse4 .cse28 .cse30 .cse31 .cse42 .cse43) .cse17 .cse18 .cse37) (or .cse44 .cse45 .cse46 .cse47 (and .cse0 .cse1 .cse48 .cse4 .cse49 .cse50) .cse18 .cse51 .cse52) (or .cse53 .cse54 .cse55 .cse46 .cse17 .cse56 .cse47 .cse18 .cse52) (or .cse44 (and .cse1 .cse3 .cse4 .cse49 .cse50 (= ~a20~0 ~a7~0)) (and .cse57 .cse58 (not (= |calculate_output_#in~input| |old(~a16~0)|)) .cse59 (not (= |calculate_output_#in~input| |old(~a20~0)|)) .cse60) (= |old(~a20~0)| |old(~a21~0)|) .cse55 (not (= |old(~a7~0)| |old(~a20~0)|)) .cse18 .cse51 .cse61) (or .cse62 .cse63 .cse17 .cse56 .cse47 .cse18 .cse52 .cse61) (or .cse13 (and .cse0 .cse1 .cse4 .cse5 .cse29 .cse6 .cse30 .cse31) .cse20 .cse21 .cse27 .cse15 .cse9 .cse23 .cse11 .cse24 .cse18 .cse25) (or .cse64 .cse65 .cse55 .cse66 .cse47 .cse18 .cse67 .cse51) (or .cse13 .cse38 (and .cse0 .cse1 .cse4 .cse5 .cse6 .cse30 .cse31 .cse42 .cse43) .cse39 .cse21 .cse41 .cse27 .cse9 .cse40 .cse17 .cse18 .cse19) (or .cse8 .cse10 .cse40 .cse25 .cse12 .cse26 (not (< 5 |old(~a16~0)|)) .cse36 .cse15 .cse16 .cse17 .cse18 .cse37) (or .cse13 (not (<= 14 |old(~a8~0)|)) .cse21 .cse68 .cse27 .cse69 .cse9 .cse10 (not (<= |old(~a8~0)| 14)) .cse40 .cse18 .cse19) (or .cse70 .cse45 .cse62 .cse63 .cse17 .cse56 .cse47 .cse18 .cse52) (or (and (or .cse45 .cse53 .cse17 .cse56 .cse47 .cse18 .cse52 .cse61) (or .cse44 .cse70 .cse34 .cse71 .cse55 .cse72 .cse18 .cse51)) (and .cse0 .cse48 .cse4 .cse28 .cse73 (not (= ~a20~0 1)) (= ~a17~0 0)) (and .cse0 .cse3 .cse4 .cse49 (not .cse48) .cse50 .cse74)) (or .cse70 .cse45 (and .cse57 .cse58 .cse75 .cse76 .cse59 .cse60) (and .cse0 .cse48 .cse4 .cse28 .cse73 .cse74) .cse56 .cse47 .cse18 .cse51 .cse52) (or .cse64 .cse71 .cse55 .cse77 .cse63 .cse47 .cse18 .cse61) (or .cse70 .cse34 .cse53 .cse54 .cse78 .cse56 .cse47 .cse18 .cse52) (or (and .cse1 .cse48 .cse4 .cse73 .cse79 .cse80) .cse70 .cse63 .cse17 .cse56 .cse47 .cse18 .cse67) (or .cse21 .cse22 .cse69 .cse10 .cse9 .cse23 .cse11 .cse24 .cse25 .cse13 .cse68 .cse27 .cse15 .cse18) (or .cse64 .cse81 .cse71 .cse77 .cse63 .cse47 .cse18 .cse61) (or .cse62 .cse81 .cse71 .cse63 .cse56 .cse47 .cse18 .cse61) (or .cse55 .cse40 .cse82 .cse17 .cse56 .cse47 .cse18 .cse51 .cse52) (or .cse64 .cse65 .cse81 (and .cse1 .cse48 .cse4 .cse28 .cse29 (= ~a17~0 ~a7~0)) .cse63 .cse47 .cse18 .cse61) (or .cse70 .cse64 .cse55 .cse66 .cse47 .cse18 .cse67 .cse51) (or .cse71 .cse78 .cse82 .cse56 .cse47 .cse18 .cse51 .cse61) (or (not (<= |old(~a17~0)| |old(~a7~0)|)) (and .cse1 .cse48 .cse4 .cse83 (<= ~a17~0 ~a7~0) .cse50 (<= ~a7~0 ~a17~0)) (not (< |old(~a20~0)| (+ |old(~a17~0)| 1))) .cse64 (not (<= |old(~a7~0)| |old(~a17~0)|)) .cse40 (not (<= |old(~a17~0)| |old(~a20~0)|)) .cse47 .cse18 .cse51)))) [2020-10-13 06:01:57,871 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:01:57,871 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,871 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,871 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,871 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:01:57,872 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:01:57,873 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:01:57,874 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:01:57,875 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:01:57,875 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:01:57,875 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:01:57,875 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:01:57,875 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:01:57,875 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:01:57,875 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:01:57,875 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:01:57,875 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:01:57,876 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse29 (= ~a7~0 1)) (.cse39 (= 5 main_~input~0)) (.cse40 (= 6 main_~input~0)) (.cse42 (= 3 main_~input~0)) (.cse43 (= main_~input~0 1)) (.cse44 (= 2 main_~input~0)) (.cse46 (= ~a17~0 1)) (.cse30 (<= ~a7~0 0)) (.cse38 (= ~a20~0 1)) (.cse48 (<= ~a21~0 0))) (let ((.cse27 (or (< 1 ~a21~0) .cse48)) (.cse41 (= ~a16~0 main_~input~0)) (.cse45 (not (= ~a21~0 ~a20~0))) (.cse6 (<= 1 ~a7~0)) (.cse18 (<= ~a16~0 5)) (.cse21 (<= 5 ~a16~0)) (.cse4 (= ~a17~0 ~a7~0)) (.cse35 (not .cse38)) (.cse19 (or (< 1 ~a7~0) .cse30)) (.cse22 (<= ~a8~0 15)) (.cse23 (<= 15 ~a8~0)) (.cse13 (<= ~a20~0 0)) (.cse33 (not .cse46)) (.cse24 (<= ~a16~0 6)) (.cse26 (<= 6 ~a16~0)) (.cse25 (<= 13 ~a8~0)) (.cse17 (<= 1 ~a20~0)) (.cse36 (<= 1 ~a17~0)) (.cse7 (<= ~a16~0 4)) (.cse9 (<= 4 ~a16~0)) (.cse37 (<= ~a17~0 1)) (.cse10 (<= ~a21~0 1)) (.cse20 (<= ~a20~0 1)) (.cse11 (<= 1 ~a21~0)) (.cse12 (<= ~a7~0 1)) (.cse28 (<= ~a8~0 13)) (.cse0 (= ~a20~0 ~a17~0)) (.cse8 (<= ~a17~0 0)) (.cse2 (= 14 ~a8~0)) (.cse16 (= ~a7~0 0)) (.cse14 (or .cse39 .cse40 (= main_~input~0 4) .cse42 .cse43 .cse44)) (.cse3 (= 5 ~a16~0)) (.cse5 (= ~a17~0 0)) (.cse31 (= ~a8~0 13)) (.cse32 (= ~a16~0 4)) (.cse50 (= ~a20~0 0)) (.cse1 (= ~a21~0 1)) (.cse49 (= ~a16~0 6)) (.cse47 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse15 (= ~a8~0 15)) (.cse34 (not .cse29))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (<= 14 ~a8~0) (<= ~a8~0 14) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (and (= ~a17~0 |old(~a17~0)|) .cse1 .cse14 .cse15 .cse3 .cse16) (and .cse17 .cse18 .cse14 .cse8 .cse19 .cse10 .cse20 .cse11 .cse21 .cse22 .cse23) (and .cse6 .cse24 .cse25 .cse17 .cse26 .cse14 .cse8 .cse20 .cse12 .cse27 .cse28) (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 .cse29 .cse15 .cse3 .cse5) (and .cse1 .cse8 .cse30 .cse31 .cse32) (not (= |old(~a21~0)| 1)) (and .cse1 .cse33 .cse31 .cse32 .cse34 .cse35) (and .cse6 .cse25 .cse36 .cse7 .cse14 .cse9 .cse37 .cse12 .cse27 .cse28 .cse13) (and .cse1 .cse14 .cse8 .cse15 .cse38 .cse32 .cse34) (and (or .cse39 .cse40 .cse41 .cse42 .cse43 .cse44) .cse1 (not (= ~a21~0 ~a7~0)) .cse15 .cse45 .cse32 .cse46) (and (or .cse39 (= ~a20~0 main_~input~0) .cse40 .cse41 .cse42 .cse44) .cse31 .cse45 .cse38 .cse32 (= ~a20~0 ~a7~0) .cse5) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse6 .cse25 .cse17 .cse36 .cse18 .cse47 .cse48 .cse37 .cse20 .cse21 .cse12 .cse28) (and .cse1 .cse2 .cse38 .cse32 .cse4 .cse16) (and .cse1 .cse29 .cse2 .cse38 .cse3 .cse5) (and .cse1 .cse14 .cse15 .cse34 .cse3 .cse35 .cse46) (and .cse1 .cse49 .cse14 .cse15 .cse34 .cse5) (and .cse7 .cse14 .cse8 .cse9 .cse19 .cse10 .cse11 .cse22 .cse23 .cse13) (and .cse1 .cse49 .cse14 .cse33 .cse15 .cse38 .cse34) (and .cse24 .cse25 .cse17 .cse36 .cse26 .cse30 .cse10 .cse20 .cse37 .cse11 .cse28) (not (= |old(~a17~0)| 1)) (and .cse50 .cse1 .cse29 .cse15 .cse32 .cse5) (and .cse25 .cse17 .cse36 .cse7 .cse9 .cse37 .cse10 .cse20 .cse11 .cse12 .cse28) (and .cse0 .cse1 .cse29 .cse2 .cse3 .cse5) (and .cse1 .cse2 (<= ~a17~0 ~a20~0) .cse8 (<= ~a17~0 ~a7~0) (< ~a20~0 (+ ~a17~0 1)) .cse32 (<= ~a7~0 ~a17~0)) (and .cse1 .cse2 .cse38 .cse32 .cse16 .cse46) (and .cse1 .cse14 .cse15 .cse34 .cse3 .cse5) (and .cse29 .cse47 .cse31 .cse38 .cse32 .cse46) (and .cse50 .cse1 .cse49 .cse47 .cse15 .cse34 .cse46)))) [2020-10-13 06:01:57,876 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:01:57,876 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:01:57,876 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse17 (<= ~a7~0 0)) (.cse34 (<= ~a21~0 0)) (.cse21 (= ~a20~0 1)) (.cse20 (= ~a7~0 1)) (.cse22 (= ~a17~0 1))) (let ((.cse18 (= ~a8~0 13)) (.cse8 (= ~a17~0 ~a7~0)) (.cse23 (not .cse22)) (.cse25 (not (= ~a21~0 ~a20~0))) (.cse1 (= ~a16~0 6)) (.cse3 (not .cse20)) (.cse24 (not .cse21)) (.cse9 (<= 1 ~a7~0)) (.cse39 (<= ~a16~0 6)) (.cse40 (<= 6 ~a16~0)) (.cse29 (or (< 1 ~a21~0) .cse34)) (.cse26 (<= 13 ~a8~0)) (.cse27 (<= 1 ~a17~0)) (.cse28 (<= ~a17~0 1)) (.cse15 (<= ~a7~0 1)) (.cse30 (<= ~a8~0 13)) (.cse32 (<= 1 ~a20~0)) (.cse33 (<= ~a16~0 5)) (.cse35 (<= ~a20~0 1)) (.cse36 (<= 5 ~a16~0)) (.cse5 (= ~a20~0 ~a17~0)) (.cse7 (= 5 ~a16~0)) (.cse6 (= 14 ~a8~0)) (.cse31 (= ~a7~0 0)) (.cse10 (<= ~a16~0 4)) (.cse11 (<= ~a17~0 0)) (.cse12 (<= 4 ~a16~0)) (.cse37 (or (< 1 ~a7~0) .cse17)) (.cse13 (<= ~a21~0 1)) (.cse14 (<= 1 ~a21~0)) (.cse41 (<= ~a8~0 15)) (.cse42 (<= 15 ~a8~0)) (.cse16 (<= ~a20~0 0)) (.cse38 (= ~a20~0 0)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a8~0 15)) (.cse19 (= ~a16~0 4)) (.cse4 (= ~a17~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse7 .cse8 .cse4) (and .cse9 (<= 14 ~a8~0) (<= ~a8~0 14) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (not (= |old(~a20~0)| 1)) (and .cse0 .cse11 .cse17 .cse18 .cse19) (and .cse20 .cse18 .cse21 .cse19 .cse22) (not (= |old(~a21~0)| 1)) (and .cse0 .cse23 .cse18 .cse19 .cse3 .cse24) (and .cse0 .cse11 .cse2 .cse21 .cse19 .cse3) (and .cse0 .cse2 .cse3 .cse7 .cse4) (and .cse18 .cse25 .cse21 .cse19 (= ~a20~0 ~a7~0) .cse4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse9 .cse26 .cse27 .cse10 .cse12 .cse28 .cse15 .cse29 .cse30 .cse16) (and .cse0 .cse6 .cse21 .cse19 .cse8 .cse31) (and .cse9 .cse26 .cse32 .cse27 .cse33 .cse34 .cse35 .cse28 .cse36 .cse15 .cse30) (and .cse0 .cse20 .cse6 .cse21 .cse7 .cse4) (and .cse0 .cse1 .cse23 .cse2 .cse21 .cse3) (and .cse0 .cse2 .cse37 .cse25 .cse19 .cse22) (and .cse38 .cse0 .cse1 .cse2 .cse3 .cse22) (and .cse5 .cse0 .cse2 .cse7 .cse4) (and .cse39 .cse26 .cse32 .cse27 .cse40 .cse17 .cse13 .cse35 .cse28 .cse14 .cse30) (and .cse0 .cse2 .cse3 .cse7 .cse24 .cse22) (and .cse9 .cse39 .cse26 .cse32 .cse40 .cse11 .cse35 .cse15 .cse29 .cse30) (not (= |old(~a17~0)| 1)) (and .cse26 .cse32 .cse27 .cse10 .cse12 .cse28 .cse13 .cse35 .cse14 .cse15 .cse30) (and .cse32 .cse33 .cse11 .cse37 .cse13 .cse35 .cse14 .cse36 .cse41 .cse42) (and .cse5 .cse0 .cse20 .cse6 .cse7 .cse4) (and (= ~a17~0 |old(~a17~0)|) .cse0 .cse2 .cse7 .cse31) (and .cse0 .cse6 (<= ~a17~0 ~a20~0) .cse11 (<= ~a17~0 ~a7~0) (< ~a20~0 (+ ~a17~0 1)) .cse19 (<= ~a7~0 ~a17~0)) (and .cse0 .cse6 .cse21 .cse19 .cse31 .cse22) (and .cse10 .cse11 .cse12 .cse37 .cse13 .cse14 .cse41 .cse42 .cse16) (and .cse38 .cse0 .cse2 .cse19 .cse4)))) [2020-10-13 06:01:57,876 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:01:57,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:01:57 BoogieIcfgContainer [2020-10-13 06:01:57,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:01:57,922 INFO L168 Benchmark]: Toolchain (without parser) took 158009.47 ms. Allocated memory was 140.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 100.7 MB in the beginning and 216.5 MB in the end (delta: -115.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:01:57,922 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:01:57,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.18 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 171.1 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:01:57,923 INFO L168 Benchmark]: Boogie Preprocessor took 128.57 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:01:57,923 INFO L168 Benchmark]: RCFGBuilder took 1296.06 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.2 MB in the beginning and 178.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:01:57,924 INFO L168 Benchmark]: TraceAbstraction took 155851.92 ms. Allocated memory was 239.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 178.8 MB in the beginning and 216.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:01:57,926 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.18 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 171.1 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.57 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1296.06 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.2 MB in the beginning and 178.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 155851.92 ms. Allocated memory was 239.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 178.8 MB in the beginning and 216.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0) || (((((a20 == a17 && a21 == 1) && 14 == a8) && 5 == a16) && a17 == a7) && a17 == 0)) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a7 <= 1) && a20 <= 0)) || !(\old(a20) == 1)) || ((((a21 == 1 && a17 <= 0) && a7 <= 0) && a8 == 13) && a16 == 4)) || ((((a7 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || !(\old(a21) == 1)) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || (((((a21 == 1 && a17 <= 0) && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1))) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((a8 == 13 && !(a21 == a20)) && a20 == 1) && a16 == 4) && a20 == a7) && a17 == 0)) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13) && a20 <= 0)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a17 == a7) && a7 == 0)) || ((((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 5) && a21 <= 0) && a20 <= 1) && a17 <= 1) && 5 <= a16) && a7 <= 1) && a8 <= 13)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && a20 == 1) && !(a7 == 1))) || (((((a21 == 1 && a8 == 15) && (1 < a7 || a7 <= 0)) && !(a21 == a20)) && a16 == 4) && a17 == 1)) || (((((a20 == 0 && a21 == 1) && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && 5 == a16) && a17 == 0)) || ((((((((((a16 <= 6 && 13 <= a8) && 1 <= a20) && 1 <= a17) && 6 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 13)) || (((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || (((((((((1 <= a7 && a16 <= 6) && 13 <= a8) && 1 <= a20) && 6 <= a16) && a17 <= 0) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || !(\old(a17) == 1)) || ((((((((((13 <= a8 && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a7 <= 1) && a8 <= 13)) || (((((((((1 <= a20 && a16 <= 5) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || (((((a20 == a17 && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16) && a17 == 0)) || ((((a17 == \old(a17) && a21 == 1) && a8 == 15) && 5 == a16) && a7 == 0)) || (((((((a21 == 1 && 14 == a8) && a17 <= a20) && a17 <= 0) && a17 <= a7) && a20 < a17 + 1) && a16 == 4) && a7 <= a17)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || ((((((((a16 <= 4 && a17 <= 0) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || ((((a20 == 0 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 145.2s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 60.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 799 SDtfs, 9114 SDslu, 1215 SDs, 0 SdLazy, 23538 SolverSat, 1256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 786 GetRequests, 354 SyntacticMatches, 23 SemanticMatches, 409 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1095 ImplicationChecksByTransitivity, 41.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 228 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 3899 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1275 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3020 FormulaSimplificationTreeSizeReductionInter, 9.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 75.6s InterpolantComputationTime, 8162 NumberOfCodeBlocks, 8162 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 8131 ConstructedInterpolants, 0 QuantifiedInterpolants, 21915298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8207/8317 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...