/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=BIGGEST --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_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:09:08,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:09:08,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:09:08,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:09:08,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:09:08,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:09:08,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:09:08,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:09:08,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:09:08,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:09:08,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:09:08,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:09:08,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:09:08,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:09:08,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:09:08,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:09:08,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:09:08,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:09:08,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:09:08,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:09:08,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:09:08,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:09:08,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:09:08,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:09:08,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:09:08,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:09:08,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:09:08,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:09:08,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:09:08,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:09:08,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:09:08,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:09:08,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:09:08,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:09:08,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:09:08,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:09:08,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:09:08,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:09:08,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:09:08,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:09:08,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:09:08,661 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 [2020-10-12 11:09:08,704 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:09:08,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:09:08,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:09:08,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:09:08,706 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:09:08,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:09:08,707 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:09:08,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:09:08,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:09:08,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:09:08,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:09:08,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:09:08,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:09:08,709 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:09:08,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:09:08,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:09:08,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:09:08,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:09:08,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:09:08,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:09:08,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:09:08,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:09:08,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:09:08,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:09:08,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:09:08,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:09:08,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:09:08,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:09:08,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:09:08,712 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:09:09,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:09:09,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:09:09,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:09:09,064 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:09:09,064 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:09:09,065 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label45.c [2020-10-12 11:09:09,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd4dfb18a/11ce52ab37d740d3b4b9724bee9acc12/FLAG8f98ea816 [2020-10-12 11:09:09,729 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:09:09,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label45.c [2020-10-12 11:09:09,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd4dfb18a/11ce52ab37d740d3b4b9724bee9acc12/FLAG8f98ea816 [2020-10-12 11:09:09,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd4dfb18a/11ce52ab37d740d3b4b9724bee9acc12 [2020-10-12 11:09:09,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:09:09,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:09:09,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:09:09,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:09:09,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:09:09,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:09:09" (1/1) ... [2020-10-12 11:09:10,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d5d771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:09, skipping insertion in model container [2020-10-12 11:09:10,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:09:09" (1/1) ... [2020-10-12 11:09:10,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:09:10,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:09:10,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:09:10,500 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:09:10,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:09:10,767 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:09:10,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10 WrapperNode [2020-10-12 11:09:10,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:09:10,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:09:10,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:09:10,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:09:10,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (1/1) ... [2020-10-12 11:09:10,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (1/1) ... [2020-10-12 11:09:10,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (1/1) ... [2020-10-12 11:09:10,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (1/1) ... [2020-10-12 11:09:10,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (1/1) ... [2020-10-12 11:09:10,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (1/1) ... [2020-10-12 11:09:10,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (1/1) ... [2020-10-12 11:09:10,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:09:10,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:09:10,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:09:10,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:09:10,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (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 [2020-10-12 11:09:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:09:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:09:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:09:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:09:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:09:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:09:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:09:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:09:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:09:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:09:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:09:12,176 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:09:12,177 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:09:12,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:09:12 BoogieIcfgContainer [2020-10-12 11:09:12,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:09:12,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:09:12,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:09:12,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:09:12,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:09:09" (1/3) ... [2020-10-12 11:09:12,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed61dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:09:12, skipping insertion in model container [2020-10-12 11:09:12,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:10" (2/3) ... [2020-10-12 11:09:12,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed61dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:09:12, skipping insertion in model container [2020-10-12 11:09:12,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:09:12" (3/3) ... [2020-10-12 11:09:12,197 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label45.c [2020-10-12 11:09:12,208 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:09:12,222 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:09:12,238 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:09:12,271 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:09:12,272 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:09:12,273 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:09:12,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:09:12,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:09:12,273 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:09:12,273 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:09:12,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:09:12,300 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:09:12,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-12 11:09:12,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:12,326 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] [2020-10-12 11:09:12,326 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:12,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:12,332 INFO L82 PathProgramCache]: Analyzing trace with hash 700982975, now seen corresponding path program 1 times [2020-10-12 11:09:12,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:12,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208661315] [2020-10-12 11:09:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:12,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:13,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:14,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:14,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-12 11:09:14,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:14,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1781 [2020-10-12 11:09:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:14,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:09:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:09:14,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:09:14,932 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-10-12 11:09:15,156 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:09:15,303 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2020-10-12 11:09:15,456 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2020-10-12 11:09:15,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:15,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:15,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:15,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:15,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:15,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:09:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:09:16,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208661315] [2020-10-12 11:09:16,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:09:16,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 11:09:16,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453346808] [2020-10-12 11:09:16,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:09:16,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:16,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:09:16,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:09:16,070 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-12 11:09:16,552 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 11:09:16,807 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-12 11:09:17,074 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-10-12 11:09:17,440 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-12 11:09:17,919 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2020-10-12 11:09:18,293 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2020-10-12 11:09:19,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:19,256 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:09:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:09:19,260 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 123 [2020-10-12 11:09:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:19,274 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:09:19,275 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:09:19,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:09:19,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:09:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:09:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:09:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:09:19,349 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 123 [2020-10-12 11:09:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:19,350 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:09:19,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:09:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:09:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 11:09:19,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:19,354 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] [2020-10-12 11:09:19,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:09:19,355 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:19,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1332783356, now seen corresponding path program 1 times [2020-10-12 11:09:19,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:19,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072082808] [2020-10-12 11:09:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:19,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:20,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:21,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:21,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 11:09:21,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:09:21,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2025 [2020-10-12 11:09:21,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:21,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:21,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:09:21,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:09:21,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:22,033 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-12 11:09:22,223 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-12 11:09:22,422 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2020-10-12 11:09:22,658 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 52 [2020-10-12 11:09:22,903 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 49 [2020-10-12 11:09:23,130 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 45 [2020-10-12 11:09:23,314 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 41 [2020-10-12 11:09:23,527 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 35 [2020-10-12 11:09:23,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:23,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:09:23,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:23,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:09:23,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:09:23,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:23,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:09:23,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:09:23,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072082808] [2020-10-12 11:09:23,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:23,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:23,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84387332] [2020-10-12 11:09:23,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:23,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:23,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:23,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:23,913 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:09:24,222 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:09:24,385 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:09:24,976 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:09:25,840 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:09:26,246 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:09:26,709 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-12 11:09:26,978 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-12 11:09:27,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:27,625 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:09:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:09:27,644 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-12 11:09:27,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:27,648 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:09:27,648 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:09:27,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:09:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:09:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:09:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:09:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:09:27,676 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 131 [2020-10-12 11:09:27,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:27,677 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:09:27,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:09:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-12 11:09:27,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:27,681 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] [2020-10-12 11:09:27,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:09:27,682 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:27,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:27,682 INFO L82 PathProgramCache]: Analyzing trace with hash 129203270, now seen corresponding path program 1 times [2020-10-12 11:09:27,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:27,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525091591] [2020-10-12 11:09:27,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:27,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:27,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:28,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:28,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:28,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 11:09:28,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:09:28,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-10-12 11:09:28,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:09:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 11:09:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:28,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:28,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:28,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:28,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:28,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:28,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:09:28,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:09:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:28,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:28,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:28,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:28,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:28,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:09:28,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:09:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:09:28,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525091591] [2020-10-12 11:09:28,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:28,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:09:28,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170588803] [2020-10-12 11:09:28,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:09:28,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:28,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:09:28,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:09:28,900 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:09:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:30,064 INFO L93 Difference]: Finished difference Result 637 states and 872 transitions. [2020-10-12 11:09:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:09:30,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2020-10-12 11:09:30,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:30,073 INFO L225 Difference]: With dead ends: 637 [2020-10-12 11:09:30,074 INFO L226 Difference]: Without dead ends: 427 [2020-10-12 11:09:30,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:09:30,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-12 11:09:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 415. [2020-10-12 11:09:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-12 11:09:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 548 transitions. [2020-10-12 11:09:30,110 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 548 transitions. Word has length 134 [2020-10-12 11:09:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:30,110 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 548 transitions. [2020-10-12 11:09:30,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:09:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 548 transitions. [2020-10-12 11:09:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-12 11:09:30,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:30,115 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:30,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:09:30,116 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:30,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:30,116 INFO L82 PathProgramCache]: Analyzing trace with hash -503774757, now seen corresponding path program 1 times [2020-10-12 11:09:30,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:30,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235192556] [2020-10-12 11:09:30,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:30,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:30,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:30,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:32,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:34,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:34,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-12 11:09:34,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:09:34,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4532 [2020-10-12 11:09:34,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:34,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:34,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:09:34,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:09:34,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:35,185 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:09:35,337 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-10-12 11:09:35,473 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2020-10-12 11:09:35,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:35,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:35,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:35,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:35,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:35,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:35,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:35,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:35,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:35,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:35,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:35,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:35,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:35,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:35,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:35,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:35,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:35,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:35,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:35,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:35,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:09:35,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:35,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:09:35,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:09:35,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:09:35,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235192556] [2020-10-12 11:09:35,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:35,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:35,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681779578] [2020-10-12 11:09:35,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:35,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:35,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:35,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:35,965 INFO L87 Difference]: Start difference. First operand 415 states and 548 transitions. Second operand 13 states. [2020-10-12 11:09:36,401 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 11:09:36,552 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 11:09:36,919 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2020-10-12 11:09:37,229 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2020-10-12 11:09:37,533 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 105 [2020-10-12 11:09:38,160 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2020-10-12 11:09:38,663 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 97 [2020-10-12 11:09:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:39,134 INFO L93 Difference]: Finished difference Result 843 states and 1178 transitions. [2020-10-12 11:09:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:09:39,135 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 143 [2020-10-12 11:09:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:39,141 INFO L225 Difference]: With dead ends: 843 [2020-10-12 11:09:39,141 INFO L226 Difference]: Without dead ends: 494 [2020-10-12 11:09:39,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:09:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-12 11:09:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 490. [2020-10-12 11:09:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-12 11:09:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 632 transitions. [2020-10-12 11:09:39,187 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 632 transitions. Word has length 143 [2020-10-12 11:09:39,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:39,188 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 632 transitions. [2020-10-12 11:09:39,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:39,188 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 632 transitions. [2020-10-12 11:09:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 11:09:39,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:39,192 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:39,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:09:39,192 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:39,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:39,193 INFO L82 PathProgramCache]: Analyzing trace with hash 669116131, now seen corresponding path program 1 times [2020-10-12 11:09:39,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:39,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712383740] [2020-10-12 11:09:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:39,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:39,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:39,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:41,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:42,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:42,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:44,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:44,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 11:09:44,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:09:44,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4883 [2020-10-12 11:09:44,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 11:09:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:09:44,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:44,694 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-12 11:09:44,945 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-12 11:09:45,246 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-12 11:09:45,566 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-12 11:09:45,835 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 42 [2020-10-12 11:09:46,039 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 38 [2020-10-12 11:09:46,198 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 34 [2020-10-12 11:09:46,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:46,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:46,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:46,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:46,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:46,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:46,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:46,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:46,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:46,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:46,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:46,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:46,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:46,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:09:46,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:46,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:46,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:46,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:46,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:46,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:46,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:46,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:46,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:09:46,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:46,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:09:46,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 11:09:46,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:09:46,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712383740] [2020-10-12 11:09:46,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:46,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:46,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940880490] [2020-10-12 11:09:46,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:46,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:46,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:46,497 INFO L87 Difference]: Start difference. First operand 490 states and 632 transitions. Second operand 13 states. [2020-10-12 11:09:46,973 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 11:09:47,157 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 11:09:47,522 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2020-10-12 11:09:47,868 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2020-10-12 11:09:48,179 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 108 [2020-10-12 11:09:48,707 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 105 [2020-10-12 11:09:49,233 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 100 [2020-10-12 11:09:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:49,732 INFO L93 Difference]: Finished difference Result 989 states and 1342 transitions. [2020-10-12 11:09:49,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:09:49,735 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 147 [2020-10-12 11:09:49,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:49,741 INFO L225 Difference]: With dead ends: 989 [2020-10-12 11:09:49,741 INFO L226 Difference]: Without dead ends: 565 [2020-10-12 11:09:49,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:09:49,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-12 11:09:49,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 488. [2020-10-12 11:09:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-12 11:09:49,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 629 transitions. [2020-10-12 11:09:49,774 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 629 transitions. Word has length 147 [2020-10-12 11:09:49,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:49,776 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 629 transitions. [2020-10-12 11:09:49,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:49,776 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 629 transitions. [2020-10-12 11:09:49,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 11:09:49,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:49,779 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:49,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:09:49,780 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:49,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:49,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1254919147, now seen corresponding path program 1 times [2020-10-12 11:09:49,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:49,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887264198] [2020-10-12 11:09:49,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:49,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:49,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:50,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:51,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:51,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 11:09:51,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:09:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1760 [2020-10-12 11:09:51,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:09:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:09:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:51,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:51,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:51,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:51,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:51,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:51,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:09:51,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:09:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:51,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:51,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:51,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:51,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:51,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:51,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:09:51,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:09:51,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:51,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:51,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:51,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 11:09:51,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:51,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 11:09:51,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:51,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:09:51,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:09:51,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887264198] [2020-10-12 11:09:51,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:51,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:09:51,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732302489] [2020-10-12 11:09:51,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:09:51,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:51,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:09:51,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:09:51,827 INFO L87 Difference]: Start difference. First operand 488 states and 629 transitions. Second operand 7 states. [2020-10-12 11:09:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:53,282 INFO L93 Difference]: Finished difference Result 1226 states and 1669 transitions. [2020-10-12 11:09:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:09:53,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-10-12 11:09:53,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:53,293 INFO L225 Difference]: With dead ends: 1226 [2020-10-12 11:09:53,293 INFO L226 Difference]: Without dead ends: 804 [2020-10-12 11:09:53,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:09:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2020-10-12 11:09:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 788. [2020-10-12 11:09:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2020-10-12 11:09:53,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 978 transitions. [2020-10-12 11:09:53,323 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 978 transitions. Word has length 151 [2020-10-12 11:09:53,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:53,324 INFO L479 AbstractCegarLoop]: Abstraction has 788 states and 978 transitions. [2020-10-12 11:09:53,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:09:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 978 transitions. [2020-10-12 11:09:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 11:09:53,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:53,327 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:53,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:09:53,328 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:53,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:53,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1057529867, now seen corresponding path program 1 times [2020-10-12 11:09:53,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:53,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424187501] [2020-10-12 11:09:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:53,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:53,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:56,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:58,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 11:09:58,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:09:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4713 [2020-10-12 11:09:58,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:09:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:09:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:58,537 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 11:09:58,760 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-12 11:09:59,068 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2020-10-12 11:09:59,364 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2020-10-12 11:09:59,596 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 46 [2020-10-12 11:09:59,779 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 42 [2020-10-12 11:09:59,946 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 36 [2020-10-12 11:10:00,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:00,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:00,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:00,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:00,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:00,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:00,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:00,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:00,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:00,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:00,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:00,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:00,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:00,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:00,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:00,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:00,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:10:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:00,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:00,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:00,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:10:00,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:00,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:10:00,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:00,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:10:00,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:00,309 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:10:00,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424187501] [2020-10-12 11:10:00,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:00,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:10:00,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484010146] [2020-10-12 11:10:00,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:00,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:00,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:00,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:00,312 INFO L87 Difference]: Start difference. First operand 788 states and 978 transitions. Second operand 13 states. [2020-10-12 11:10:00,976 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 11:10:01,410 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:10:01,909 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:10:02,216 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:10:02,697 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-12 11:10:03,245 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-12 11:10:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:03,714 INFO L93 Difference]: Finished difference Result 1574 states and 2023 transitions. [2020-10-12 11:10:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:10:03,717 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 167 [2020-10-12 11:10:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:03,721 INFO L225 Difference]: With dead ends: 1574 [2020-10-12 11:10:03,722 INFO L226 Difference]: Without dead ends: 852 [2020-10-12 11:10:03,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:10:03,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-10-12 11:10:03,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 848. [2020-10-12 11:10:03,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2020-10-12 11:10:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1046 transitions. [2020-10-12 11:10:03,749 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1046 transitions. Word has length 167 [2020-10-12 11:10:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:03,750 INFO L479 AbstractCegarLoop]: Abstraction has 848 states and 1046 transitions. [2020-10-12 11:10:03,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1046 transitions. [2020-10-12 11:10:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-12 11:10:03,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:03,754 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] [2020-10-12 11:10:03,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:10:03,755 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:03,755 INFO L82 PathProgramCache]: Analyzing trace with hash -979080419, now seen corresponding path program 1 times [2020-10-12 11:10:03,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:03,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458841635] [2020-10-12 11:10:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:03,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:03,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:03,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:04,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:06,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:06,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 11:10:06,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:10:06,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2792 [2020-10-12 11:10:06,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:10:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:10:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:10:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:07,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:07,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:07,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:07,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:07,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:10:07,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:07,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:07,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:07,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:07,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:07,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:10:07,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:07,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:07,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:10:07,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:07,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:10:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:07,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:07,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:10:07,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 11:10:07,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:10:07,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:10:08,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458841635] [2020-10-12 11:10:08,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:08,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:10:08,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369972782] [2020-10-12 11:10:08,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:10:08,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:08,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:10:08,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:10:08,171 INFO L87 Difference]: Start difference. First operand 848 states and 1046 transitions. Second operand 20 states. [2020-10-12 11:10:09,015 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 11:10:09,320 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:10:09,626 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:10:09,957 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:10:10,203 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:10:10,499 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 41 [2020-10-12 11:10:10,717 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:10:11,186 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:10:11,405 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-12 11:10:11,606 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2020-10-12 11:10:11,855 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:10:12,050 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-12 11:10:12,260 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:10:12,612 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2020-10-12 11:10:12,780 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 43 [2020-10-12 11:10:13,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:13,972 INFO L93 Difference]: Finished difference Result 1820 states and 2418 transitions. [2020-10-12 11:10:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 11:10:13,976 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 181 [2020-10-12 11:10:13,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:13,981 INFO L225 Difference]: With dead ends: 1820 [2020-10-12 11:10:13,981 INFO L226 Difference]: Without dead ends: 1038 [2020-10-12 11:10:13,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=613, Invalid=1549, Unknown=0, NotChecked=0, Total=2162 [2020-10-12 11:10:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-12 11:10:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 995. [2020-10-12 11:10:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-10-12 11:10:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1216 transitions. [2020-10-12 11:10:14,017 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1216 transitions. Word has length 181 [2020-10-12 11:10:14,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:14,017 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1216 transitions. [2020-10-12 11:10:14,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:10:14,017 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1216 transitions. [2020-10-12 11:10:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-12 11:10:14,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:14,022 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 11:10:14,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:10:14,022 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:14,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:14,023 INFO L82 PathProgramCache]: Analyzing trace with hash -454292876, now seen corresponding path program 1 times [2020-10-12 11:10:14,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:14,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27156639] [2020-10-12 11:10:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:14,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:17,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:17,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:17,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:19,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:19,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 11:10:19,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:10:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 11:10:19,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:10:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:10:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 11:10:19,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:19,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:19,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:19,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:19,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:19,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:19,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:10:19,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:19,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:19,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:19,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:10:19,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:19,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:19,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:19,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:19,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:19,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:19,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:10:19,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:10:19,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:19,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:10:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:19,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:19,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:19,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:10:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 11:10:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:10:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:19,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 11:10:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:19,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:19,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:19,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:10:19,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:19,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:10:19,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:19,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:10:19,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 63 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 11:10:19,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27156639] [2020-10-12 11:10:19,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:19,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:10:19,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865897390] [2020-10-12 11:10:19,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:10:19,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:19,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:10:19,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:10:19,330 INFO L87 Difference]: Start difference. First operand 995 states and 1216 transitions. Second operand 7 states. [2020-10-12 11:10:20,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:20,680 INFO L93 Difference]: Finished difference Result 2262 states and 2947 transitions. [2020-10-12 11:10:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:10:20,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-10-12 11:10:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:20,691 INFO L225 Difference]: With dead ends: 2262 [2020-10-12 11:10:20,691 INFO L226 Difference]: Without dead ends: 1333 [2020-10-12 11:10:20,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:10:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2020-10-12 11:10:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1289. [2020-10-12 11:10:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1289 states. [2020-10-12 11:10:20,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1627 transitions. [2020-10-12 11:10:20,751 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1627 transitions. Word has length 193 [2020-10-12 11:10:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:20,751 INFO L479 AbstractCegarLoop]: Abstraction has 1289 states and 1627 transitions. [2020-10-12 11:10:20,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:10:20,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1627 transitions. [2020-10-12 11:10:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-12 11:10:20,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:20,758 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:20,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:10:20,758 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:20,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:20,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1483294893, now seen corresponding path program 1 times [2020-10-12 11:10:20,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:20,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967539032] [2020-10-12 11:10:20,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:20,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:20,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:21,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:21,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:23,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:23,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:23,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 11:10:25,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:10:25,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 11:10:25,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:10:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:10:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 11:10:25,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:25,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:25,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:10:25,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:10:25,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:10:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:10:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:10:25,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:25,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 11:10:25,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:10:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:26,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 11:10:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:26,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:26,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:26,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:10:26,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:10:26,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:26,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:26,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:10:26,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:26,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:26,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 11:10:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:26,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:26,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:10:26,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:10:26,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:10:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:26,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 82 proven. 39 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 11:10:26,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967539032] [2020-10-12 11:10:26,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:26,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:10:26,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703253450] [2020-10-12 11:10:26,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:10:26,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:26,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:10:26,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:10:26,101 INFO L87 Difference]: Start difference. First operand 1289 states and 1627 transitions. Second operand 7 states. [2020-10-12 11:10:27,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:27,331 INFO L93 Difference]: Finished difference Result 2677 states and 3428 transitions. [2020-10-12 11:10:27,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:10:27,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-12 11:10:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:27,341 INFO L225 Difference]: With dead ends: 2677 [2020-10-12 11:10:27,341 INFO L226 Difference]: Without dead ends: 1454 [2020-10-12 11:10:27,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:10:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2020-10-12 11:10:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1442. [2020-10-12 11:10:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1442 states. [2020-10-12 11:10:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1809 transitions. [2020-10-12 11:10:27,388 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1809 transitions. Word has length 208 [2020-10-12 11:10:27,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:27,388 INFO L479 AbstractCegarLoop]: Abstraction has 1442 states and 1809 transitions. [2020-10-12 11:10:27,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:10:27,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1809 transitions. [2020-10-12 11:10:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-12 11:10:27,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:27,395 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 11:10:27,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:10:27,395 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:27,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:27,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1885926449, now seen corresponding path program 1 times [2020-10-12 11:10:27,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:27,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688259313] [2020-10-12 11:10:27,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:27,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:27,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:28,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:28,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:28,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-12 11:10:28,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:10:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1557 [2020-10-12 11:10:28,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 11:10:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-12 11:10:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-12 11:10:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:29,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:29,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:29,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:29,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:29,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:29,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:29,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:29,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:29,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:29,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:10:29,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:10:29,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:10:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:29,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:29,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:29,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:10:29,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:29,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:10:29,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:29,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:10:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:29,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:29,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:29,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:10:29,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:10:29,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 11:10:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 11:10:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:29,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:29,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:29,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:29,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:10:29,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:29,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 11:10:29,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:10:29,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 151 proven. 6 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-12 11:10:29,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688259313] [2020-10-12 11:10:29,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:29,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:10:29,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919677563] [2020-10-12 11:10:29,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:10:29,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:29,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:10:29,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:10:29,270 INFO L87 Difference]: Start difference. First operand 1442 states and 1809 transitions. Second operand 6 states. [2020-10-12 11:10:30,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:30,368 INFO L93 Difference]: Finished difference Result 3267 states and 4178 transitions. [2020-10-12 11:10:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:10:30,368 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2020-10-12 11:10:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:30,376 INFO L225 Difference]: With dead ends: 3267 [2020-10-12 11:10:30,376 INFO L226 Difference]: Without dead ends: 1605 [2020-10-12 11:10:30,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:10:30,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2020-10-12 11:10:30,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1563. [2020-10-12 11:10:30,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1563 states. [2020-10-12 11:10:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 1761 transitions. [2020-10-12 11:10:30,426 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 1761 transitions. Word has length 238 [2020-10-12 11:10:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:30,426 INFO L479 AbstractCegarLoop]: Abstraction has 1563 states and 1761 transitions. [2020-10-12 11:10:30,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:10:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 1761 transitions. [2020-10-12 11:10:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-12 11:10:30,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:30,433 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] [2020-10-12 11:10:30,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:10:30,434 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:30,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:30,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1564985338, now seen corresponding path program 1 times [2020-10-12 11:10:30,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:30,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389925105] [2020-10-12 11:10:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:30,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:30,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:31,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:31,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 11:10:31,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-10-12 11:10:31,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 11:10:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 11:10:31,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:10:31,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:31,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:31,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:31,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:31,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:31,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:31,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:31,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:31,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:31,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:31,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:31,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:10:31,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:31,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:10:31,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:31,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:31,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:10:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:31,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:31,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:10:31,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:31,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:10:31,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:31,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:31,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:31,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:31,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:10:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:31,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:31,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:10:31,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:31,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:10:31,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 11:10:31,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-12 11:10:31,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389925105] [2020-10-12 11:10:31,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:31,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:10:31,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623188795] [2020-10-12 11:10:31,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:10:31,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:31,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:10:31,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:10:31,801 INFO L87 Difference]: Start difference. First operand 1563 states and 1761 transitions. Second operand 5 states. [2020-10-12 11:10:32,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:32,904 INFO L93 Difference]: Finished difference Result 3152 states and 3589 transitions. [2020-10-12 11:10:32,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:10:32,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 239 [2020-10-12 11:10:32,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:32,919 INFO L225 Difference]: With dead ends: 3152 [2020-10-12 11:10:32,919 INFO L226 Difference]: Without dead ends: 1569 [2020-10-12 11:10:32,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:10:32,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2020-10-12 11:10:32,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1561. [2020-10-12 11:10:32,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2020-10-12 11:10:32,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1756 transitions. [2020-10-12 11:10:32,965 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1756 transitions. Word has length 239 [2020-10-12 11:10:32,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:32,965 INFO L479 AbstractCegarLoop]: Abstraction has 1561 states and 1756 transitions. [2020-10-12 11:10:32,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:10:32,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1756 transitions. [2020-10-12 11:10:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-12 11:10:32,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:32,972 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:32,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:10:32,972 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:32,973 INFO L82 PathProgramCache]: Analyzing trace with hash -86627084, now seen corresponding path program 1 times [2020-10-12 11:10:32,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:32,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050011313] [2020-10-12 11:10:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:33,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:35,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:35,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:35,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:37,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:38,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:38,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-12 11:10:38,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:10:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 11:10:38,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:10:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 11:10:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 11:10:38,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:39,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:39,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:39,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:39,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:39,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:39,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:10:39,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:39,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:39,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:39,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:10:39,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:10:39,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:39,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:10:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:39,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:39,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:39,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:10:39,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:10:39,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:10:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:39,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:10:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:39,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:39,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:39,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:39,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:10:39,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:39,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 11:10:39,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:10:39,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 151 proven. 48 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-12 11:10:39,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050011313] [2020-10-12 11:10:39,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:39,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 11:10:39,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808767570] [2020-10-12 11:10:39,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 11:10:39,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:39,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 11:10:39,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:10:39,443 INFO L87 Difference]: Start difference. First operand 1561 states and 1756 transitions. Second operand 21 states. [2020-10-12 11:10:40,799 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 11:10:41,085 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-12 11:10:41,421 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-12 11:10:41,661 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-12 11:10:41,910 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 11:10:42,169 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 11:10:42,443 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 11:10:42,753 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 11:10:43,226 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 11:10:43,450 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-12 11:10:43,643 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-12 11:10:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:44,119 INFO L93 Difference]: Finished difference Result 3144 states and 3559 transitions. [2020-10-12 11:10:44,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 11:10:44,120 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 253 [2020-10-12 11:10:44,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:44,126 INFO L225 Difference]: With dead ends: 3144 [2020-10-12 11:10:44,126 INFO L226 Difference]: Without dead ends: 1626 [2020-10-12 11:10:44,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=400, Invalid=1082, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 11:10:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2020-10-12 11:10:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1606. [2020-10-12 11:10:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-12 11:10:44,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1806 transitions. [2020-10-12 11:10:44,166 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1806 transitions. Word has length 253 [2020-10-12 11:10:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:44,167 INFO L479 AbstractCegarLoop]: Abstraction has 1606 states and 1806 transitions. [2020-10-12 11:10:44,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 11:10:44,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1806 transitions. [2020-10-12 11:10:44,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-12 11:10:44,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:44,174 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:44,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:10:44,174 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash 631477087, now seen corresponding path program 1 times [2020-10-12 11:10:44,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:44,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848907011] [2020-10-12 11:10:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:44,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:44,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:47,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:47,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:47,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:47,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:49,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:49,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-12 11:10:49,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:10:49,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 11:10:49,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:49,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:10:49,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-12 11:10:49,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 11:10:49,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:49,649 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:10:49,840 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45 [2020-10-12 11:10:50,109 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-10-12 11:10:50,378 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2020-10-12 11:10:50,573 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2020-10-12 11:10:50,768 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 44 [2020-10-12 11:10:50,963 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2020-10-12 11:10:51,148 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 39 [2020-10-12 11:10:51,332 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2020-10-12 11:10:51,513 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2020-10-12 11:10:51,697 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2020-10-12 11:10:51,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:51,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:51,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:51,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:51,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:51,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:51,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:51,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:51,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:51,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:51,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:51,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:51,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:10:51,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:51,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:10:51,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:51,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:10:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:51,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:51,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:51,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:10:51,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:51,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:10:51,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:51,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:51,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:10:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:51,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:51,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:10:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:51,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 11:10:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:52,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:52,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:52,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:52,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:10:52,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:52,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 11:10:52,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:10:52,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 157 proven. 49 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-12 11:10:52,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848907011] [2020-10-12 11:10:52,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:52,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:10:52,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462466894] [2020-10-12 11:10:52,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:10:52,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:52,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:10:52,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:10:52,356 INFO L87 Difference]: Start difference. First operand 1606 states and 1806 transitions. Second operand 20 states. [2020-10-12 11:10:53,007 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:10:53,265 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:10:53,475 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 11:10:53,752 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 11:10:53,949 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 11:10:54,165 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:10:54,360 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 11:10:54,549 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 11:10:54,827 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 11:10:55,284 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 11:10:55,443 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 11:10:55,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:55,887 INFO L93 Difference]: Finished difference Result 3220 states and 3640 transitions. [2020-10-12 11:10:55,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 11:10:55,888 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 257 [2020-10-12 11:10:55,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:55,894 INFO L225 Difference]: With dead ends: 3220 [2020-10-12 11:10:55,895 INFO L226 Difference]: Without dead ends: 1657 [2020-10-12 11:10:55,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=402, Invalid=788, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 11:10:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2020-10-12 11:10:55,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1606. [2020-10-12 11:10:55,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-12 11:10:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1806 transitions. [2020-10-12 11:10:55,936 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1806 transitions. Word has length 257 [2020-10-12 11:10:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:55,937 INFO L479 AbstractCegarLoop]: Abstraction has 1606 states and 1806 transitions. [2020-10-12 11:10:55,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:10:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1806 transitions. [2020-10-12 11:10:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-12 11:10:55,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:55,942 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:10:55,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:10:55,943 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:55,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:55,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1706755203, now seen corresponding path program 1 times [2020-10-12 11:10:55,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:55,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876695648] [2020-10-12 11:10:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:56,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:56,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:56,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:56,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:57,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:57,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:00,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:00,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-12 11:11:00,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:11:00,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4626 [2020-10-12 11:11:00,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:11:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-12 11:11:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:11:00,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:01,141 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:11:01,356 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-10-12 11:11:01,487 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-10-12 11:11:01,663 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-12 11:11:01,907 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 41 [2020-10-12 11:11:02,096 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2020-10-12 11:11:02,299 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2020-10-12 11:11:02,514 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2020-10-12 11:11:02,680 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-10-12 11:11:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:03,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:03,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:03,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:03,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:03,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:11:03,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:03,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:03,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:03,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:03,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:11:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:11:03,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:11:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:03,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:03,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:03,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:11:03,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:11:03,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:03,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:11:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:03,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:03,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:11:03,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:11:03,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:11:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:03,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:11:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:03,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:03,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:11:03,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 11:11:03,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:11:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:03,566 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 169 proven. 49 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-12 11:11:03,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876695648] [2020-10-12 11:11:03,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:03,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:11:03,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488361543] [2020-10-12 11:11:03,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:11:03,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:03,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:11:03,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:11:03,568 INFO L87 Difference]: Start difference. First operand 1606 states and 1806 transitions. Second operand 20 states. [2020-10-12 11:11:03,911 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:11:04,156 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 11:11:04,358 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 11:11:04,557 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:11:04,797 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 11:11:04,986 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:11:05,374 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 11:11:05,643 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 11:11:05,800 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 11:11:06,002 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 11:11:06,149 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-12 11:11:06,297 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 11:11:07,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:07,773 INFO L93 Difference]: Finished difference Result 3326 states and 3798 transitions. [2020-10-12 11:11:07,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:11:07,774 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 263 [2020-10-12 11:11:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:07,781 INFO L225 Difference]: With dead ends: 3326 [2020-10-12 11:11:07,782 INFO L226 Difference]: Without dead ends: 1786 [2020-10-12 11:11:07,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=577, Invalid=1229, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 11:11:07,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2020-10-12 11:11:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1749. [2020-10-12 11:11:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1749 states. [2020-10-12 11:11:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 1962 transitions. [2020-10-12 11:11:07,830 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 1962 transitions. Word has length 263 [2020-10-12 11:11:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:07,831 INFO L479 AbstractCegarLoop]: Abstraction has 1749 states and 1962 transitions. [2020-10-12 11:11:07,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:11:07,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 1962 transitions. [2020-10-12 11:11:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-12 11:11:07,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:07,837 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-12 11:11:07,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:11:07,838 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:07,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:07,838 INFO L82 PathProgramCache]: Analyzing trace with hash 938900491, now seen corresponding path program 1 times [2020-10-12 11:11:07,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:07,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793431650] [2020-10-12 11:11:07,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:07,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:07,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:08,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:11,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:11,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-12 11:11:11,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:11:11,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3456 [2020-10-12 11:11:11,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:11,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:11,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 11:11:11,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 11:11:11,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:11,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:11,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:11,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:11,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:11,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:11,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:11,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:11,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:11,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:11,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:11,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:11:11,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:11,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:11:11,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:11:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:11,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:11:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:11,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:11,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:11,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:11:11,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:11,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:11:11,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:11:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:11,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:11:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:11,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:11,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:11:11,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:11,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:11,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:11:11,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:11,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:11,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 11:11:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:11,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:11,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:11,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:11,607 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 184 proven. 54 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-12 11:11:11,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793431650] [2020-10-12 11:11:11,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:11,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:11:11,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898534148] [2020-10-12 11:11:11,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:11:11,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:11,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:11:11,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:11:11,612 INFO L87 Difference]: Start difference. First operand 1749 states and 1962 transitions. Second operand 7 states. [2020-10-12 11:11:12,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:12,858 INFO L93 Difference]: Finished difference Result 3857 states and 4359 transitions. [2020-10-12 11:11:12,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:11:12,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 273 [2020-10-12 11:11:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:12,865 INFO L225 Difference]: With dead ends: 3857 [2020-10-12 11:11:12,866 INFO L226 Difference]: Without dead ends: 2174 [2020-10-12 11:11:12,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:11:12,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2020-10-12 11:11:12,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2025. [2020-10-12 11:11:12,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2025 states. [2020-10-12 11:11:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2282 transitions. [2020-10-12 11:11:12,917 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2282 transitions. Word has length 273 [2020-10-12 11:11:12,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:12,917 INFO L479 AbstractCegarLoop]: Abstraction has 2025 states and 2282 transitions. [2020-10-12 11:11:12,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:11:12,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2282 transitions. [2020-10-12 11:11:12,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-12 11:11:12,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:12,924 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-12 11:11:12,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:11:12,924 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1420644127, now seen corresponding path program 1 times [2020-10-12 11:11:12,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:12,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592548378] [2020-10-12 11:11:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:13,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:13,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-12 11:11:14,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:11:14,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1669 [2020-10-12 11:11:14,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-12 11:11:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:11:14,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:14,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:14,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:14,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:14,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:14,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:14,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:14,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:14,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:11:14,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:11:14,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:14,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:11:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:14,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:11:14,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:11:14,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:11:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:11:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:14,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:11:14,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:11:14,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:14,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:11:14,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 11:11:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:14,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 11:11:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 197 proven. 14 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2020-10-12 11:11:14,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592548378] [2020-10-12 11:11:14,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:14,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:11:14,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439617000] [2020-10-12 11:11:14,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:11:14,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:15,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:11:15,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:11:15,000 INFO L87 Difference]: Start difference. First operand 2025 states and 2282 transitions. Second operand 7 states. [2020-10-12 11:11:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:16,411 INFO L93 Difference]: Finished difference Result 4131 states and 4652 transitions. [2020-10-12 11:11:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:11:16,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-10-12 11:11:16,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:16,426 INFO L225 Difference]: With dead ends: 4131 [2020-10-12 11:11:16,426 INFO L226 Difference]: Without dead ends: 2172 [2020-10-12 11:11:16,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:11:16,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2020-10-12 11:11:16,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2019. [2020-10-12 11:11:16,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2019 states. [2020-10-12 11:11:16,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2261 transitions. [2020-10-12 11:11:16,473 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2261 transitions. Word has length 295 [2020-10-12 11:11:16,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:16,473 INFO L479 AbstractCegarLoop]: Abstraction has 2019 states and 2261 transitions. [2020-10-12 11:11:16,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:11:16,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2261 transitions. [2020-10-12 11:11:16,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-12 11:11:16,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:16,480 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] [2020-10-12 11:11:16,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:11:16,480 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:16,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:16,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1842853734, now seen corresponding path program 1 times [2020-10-12 11:11:16,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:16,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490124793] [2020-10-12 11:11:16,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:16,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:16,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-12 11:11:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:17,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:17,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:17,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:17,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:17,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:11:17,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:11:17,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:17,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:11:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:17,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:11:17,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:17,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:11:17,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:17,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:11:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:11:17,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:17,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:17,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:11:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:17,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:17,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:11:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:17,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 11:11:17,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:11:17,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 11:11:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-12 11:11:17,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490124793] [2020-10-12 11:11:17,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:17,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:11:17,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481767777] [2020-10-12 11:11:17,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:11:17,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:17,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:11:17,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:11:17,691 INFO L87 Difference]: Start difference. First operand 2019 states and 2261 transitions. Second operand 5 states. [2020-10-12 11:11:18,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:18,801 INFO L93 Difference]: Finished difference Result 4661 states and 5248 transitions. [2020-10-12 11:11:18,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:11:18,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-12 11:11:18,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:18,812 INFO L225 Difference]: With dead ends: 4661 [2020-10-12 11:11:18,813 INFO L226 Difference]: Without dead ends: 2565 [2020-10-12 11:11:18,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:11:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2020-10-12 11:11:18,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2287. [2020-10-12 11:11:18,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2287 states. [2020-10-12 11:11:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2287 states to 2287 states and 2515 transitions. [2020-10-12 11:11:18,868 INFO L78 Accepts]: Start accepts. Automaton has 2287 states and 2515 transitions. Word has length 308 [2020-10-12 11:11:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:18,868 INFO L479 AbstractCegarLoop]: Abstraction has 2287 states and 2515 transitions. [2020-10-12 11:11:18,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:11:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2287 states and 2515 transitions. [2020-10-12 11:11:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-12 11:11:18,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:18,876 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] [2020-10-12 11:11:18,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:11:18,876 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:18,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:18,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1145606356, now seen corresponding path program 1 times [2020-10-12 11:11:18,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:18,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414609011] [2020-10-12 11:11:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:19,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:20,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-12 11:11:20,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:20,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1270 [2020-10-12 11:11:20,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:20,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:20,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-12 11:11:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-12 11:11:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:20,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:20,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:20,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:20,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:20,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:20,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:11:20,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:11:20,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:20,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:20,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:11:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:20,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:20,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:11:20,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:20,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:11:20,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:20,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:20,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:20,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:20,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:11:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:20,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:20,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:11:20,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:20,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:20,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:20,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:11:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:20,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:20,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:11:20,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:11:20,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:11:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:20,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:20,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 11:11:20,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 11:11:20,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:11:20,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-12 11:11:20,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414609011] [2020-10-12 11:11:20,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:20,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:11:20,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410803967] [2020-10-12 11:11:20,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:11:20,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:20,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:11:20,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:11:20,649 INFO L87 Difference]: Start difference. First operand 2287 states and 2515 transitions. Second operand 5 states. [2020-10-12 11:11:21,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:21,580 INFO L93 Difference]: Finished difference Result 4780 states and 5258 transitions. [2020-10-12 11:11:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:11:21,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 335 [2020-10-12 11:11:21,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:21,588 INFO L225 Difference]: With dead ends: 4780 [2020-10-12 11:11:21,588 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:11:21,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:11:21,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:11:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:11:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:11:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:11:21,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 335 [2020-10-12 11:11:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:21,598 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:11:21,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:11:21,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:11:21,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:11:21,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:11:21,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:11:22,570 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 173 [2020-10-12 11:11:22,956 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 149 [2020-10-12 11:11:23,100 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 42 [2020-10-12 11:11:25,531 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 324 DAG size of output: 170 [2020-10-12 11:11:26,674 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 192 DAG size of output: 103 [2020-10-12 11:11:27,319 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 78 [2020-10-12 11:11:27,324 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:11:27,326 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)|)) [2020-10-12 11:11:27,326 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:11:27,326 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-12 11:11:27,326 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-12 11:11:27,327 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,328 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-12 11:11:27,329 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 527) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-12 11:11:27,330 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-12 11:11:27,331 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-12 11:11:27,332 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-12 11:11:27,332 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-12 11:11:27,332 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-12 11:11:27,332 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-12 11:11:27,332 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-12 11:11:27,332 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,333 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,333 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,333 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,333 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,333 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-12 11:11:27,335 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-12 11:11:27,335 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-12 11:11:27,335 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-12 11:11:27,335 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-12 11:11:27,335 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-12 11:11:27,335 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-12 11:11:27,335 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-12 11:11:27,336 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-12 11:11:27,336 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-12 11:11:27,336 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-12 11:11:27,336 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-12 11:11:27,337 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-12 11:11:27,337 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-12 11:11:27,338 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,339 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-12 11:11:27,340 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,341 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,342 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-12 11:11:27,342 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-12 11:11:27,342 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-12 11:11:27,343 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-12 11:11:27,343 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-12 11:11:27,343 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-12 11:11:27,343 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-12 11:11:27,343 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-12 11:11:27,343 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,344 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,344 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,344 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,344 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-12 11:11:27,345 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-12 11:11:27,346 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-12 11:11:27,347 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse20 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse22 (= ~a16~0 |old(~a16~0)|)) (.cse25 (= ~a8~0 |old(~a8~0)|)) (.cse9 (<= ~a21~0 1)) (.cse11 (<= 1 ~a21~0))) (let ((.cse10 (= ~a16~0 4)) (.cse21 (= ~a21~0 1)) (.cse7 (= ~a8~0 15)) (.cse12 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (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))))) (.cse15 (not (= 15 |old(~a8~0)|))) (.cse16 (not (= |old(~a21~0)| 1))) (.cse18 (not (= 4 |old(~a16~0)|))) (.cse5 (<= 1 ~a17~0)) (.cse8 (<= ~a17~0 1)) (.cse23 (not (<= 6 |old(~a16~0)|))) (.cse3 (and .cse20 .cse4 .cse6 .cse22 .cse25 .cse9 .cse11)) (.cse24 (= ~a21~0 |old(~a21~0)|)) (.cse13 (not (<= 1 |old(~a17~0)|))) (.cse2 (not (= |old(~a7~0)| 1))) (.cse14 (not (<= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a21~0)| 1))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse19 (not (<= |old(~a17~0)| 0))) (.cse17 (not (= ~a12~0 8)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18) (or (not (= 0 |old(~a20~0)|)) .cse19 (and .cse4 .cse20 .cse21 .cse6 .cse7 .cse10) .cse16 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6))) .cse15 .cse17 .cse18) (or (not (<= |old(~a16~0)| 6)) (not (<= |old(~a8~0)| 15)) .cse12 .cse0 (not (<= 15 |old(~a8~0)|)) .cse1 (and .cse4 .cse20 .cse6 .cse22 .cse9 .cse11 (<= ~a8~0 15) (<= 15 ~a8~0)) .cse19 .cse23 .cse17) (or (and .cse20 .cse4 .cse6 (= 14 ~a8~0) .cse22 .cse9 .cse11) (not (= 14 |old(~a8~0)|)) .cse0 .cse1) (or (and .cse4 .cse20 .cse21 .cse6 .cse7 (= 5 ~a16~0)) .cse12 (not (= 5 |old(~a16~0)|)) .cse15 .cse16 .cse17) (or (and .cse20 .cse4 .cse24 .cse6 .cse22 .cse25) (and (or .cse2 .cse23) (or .cse2 .cse18))) (or .cse0 (and .cse4 .cse5 .cse6 .cse22 .cse25 .cse8 .cse9 .cse11) .cse1 .cse13 .cse14 .cse23) (or .cse0 .cse1 .cse3 (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or (and .cse4 .cse24 .cse6 .cse22 .cse25 (= ~a17~0 1)) .cse13 .cse2 (not (= |old(~a20~0)| 1)) .cse14) (or (not (<= 4 |old(~a16~0)|)) (and .cse4 .cse20 .cse6 (<= ~a16~0 4) .cse25 (<= 4 ~a16~0) .cse9 .cse11) .cse0 .cse1 (not (<= |old(~a8~0)| 13)) (not (<= |old(~a16~0)| 4)) (not (<= 13 |old(~a8~0)|)) (and (not (< 1 |old(~a17~0)|)) .cse19) .cse17)))) [2020-10-12 11:11:27,347 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-12 11:11:27,347 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-12 11:11:27,348 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-12 11:11:27,349 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-12 11:11:27,350 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-12 11:11:27,351 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-12 11:11:27,352 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-12 11:11:27,353 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:11:27,354 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (= ~a12~0 8) (= ~a8~0 15) (<= ~a21~0 1) (<= ~a20~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-12 11:11:27,354 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:11:27,354 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:11:27,354 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 (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-12 11:11:27,354 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:11:27,354 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse5 (<= 1 ~a17~0)) (.cse0 (<= 6 ~a16~0)) (.cse7 (<= ~a17~0 1)) (.cse2 (<= ~a17~0 0)) (.cse1 (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)))) (.cse6 (= ~a8~0 15)) (.cse3 (<= ~a21~0 1)) (.cse4 (<= 1 ~a21~0)) (.cse9 (= ~a7~0 1)) (.cse8 (= ~a16~0 4))) (or (and (<= ~a16~0 6) .cse0 .cse1 .cse2 .cse3 .cse4 (<= ~a8~0 15) (<= 15 ~a8~0)) (and .cse5 .cse1 .cse6 .cse7 .cse3 .cse8 .cse4) (and (<= 1 ~a20~0) (<= ~a20~0 1) .cse3 .cse4) (and (<= 13 ~a8~0) (<= ~a16~0 4) (<= 4 ~a16~0) .cse3 (or .cse2 (< 1 ~a17~0)) .cse4 (<= ~a8~0 13)) (and .cse0 .cse9) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse9 (= ~a20~0 1) (= ~a17~0 1)) (not (<= |old(~a20~0)| 1)) (and .cse5 .cse0 .cse7 .cse3 .cse4) (and (= ~a20~0 0) (= ~a21~0 |old(~a21~0)|) .cse1 .cse2 .cse6 .cse8) (not (= |old(~a17~0)| 1)) (and .cse1 .cse6 .cse3 .cse4 (= 5 ~a16~0)) (and (= 14 ~a8~0) .cse3 .cse4) (not (= 5 |old(~a16~0)|)) (and .cse9 .cse3 .cse4) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse9 .cse8))) [2020-10-12 11:11:27,355 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-12 11:11:27,355 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-12 11:11:27,355 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse1 (= ~a8~0 15)) (.cse6 (<= 1 ~a17~0)) (.cse5 (<= 6 ~a16~0)) (.cse7 (<= ~a17~0 1)) (.cse2 (<= ~a21~0 1)) (.cse4 (<= 1 ~a21~0)) (.cse8 (= ~a7~0 1)) (.cse3 (= ~a16~0 4))) (or (and (= ~a20~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= ~a16~0 6) .cse5 .cse0 .cse2 .cse4 (<= ~a8~0 15) (<= 15 ~a8~0)) (and (<= 1 ~a20~0) (<= ~a20~0 1) .cse2 .cse4) (and (<= 13 ~a8~0) (<= ~a16~0 4) (<= 4 ~a16~0) .cse2 (or .cse0 (< 1 ~a17~0)) .cse4 (<= ~a8~0 13)) (and .cse1 .cse2 .cse4 (= 5 ~a16~0)) (and .cse6 .cse1 .cse7 .cse2 .cse3 .cse4) (and .cse5 .cse8) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse8 (= ~a20~0 1) (= ~a17~0 1)) (not (<= |old(~a20~0)| 1)) (and .cse6 .cse5 .cse7 .cse2 .cse4) (not (= |old(~a17~0)| 1)) (and (= 14 ~a8~0) .cse2 .cse4) (not (= 5 |old(~a16~0)|)) (and .cse8 .cse2 .cse4) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse8 .cse3))) [2020-10-12 11:11:27,355 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:11:27,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:11:27 BoogieIcfgContainer [2020-10-12 11:11:27,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:11:27,405 INFO L168 Benchmark]: Toolchain (without parser) took 137413.01 ms. Allocated memory was 146.3 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 100.9 MB in the beginning and 678.1 MB in the end (delta: -577.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-12 11:11:27,405 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-12 11:11:27,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.52 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.5 MB in the beginning and 170.9 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:11:27,406 INFO L168 Benchmark]: Boogie Preprocessor took 118.70 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 166.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:11:27,407 INFO L168 Benchmark]: RCFGBuilder took 1296.11 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 179.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:11:27,408 INFO L168 Benchmark]: TraceAbstraction took 135214.22 ms. Allocated memory was 238.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 179.2 MB in the beginning and 678.1 MB in the end (delta: -498.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-12 11:11:27,410 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.52 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.5 MB in the beginning and 170.9 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.70 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 166.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1296.11 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 179.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 135214.22 ms. Allocated memory was 238.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 179.2 MB in the beginning and 678.1 MB in the end (delta: -498.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 527]: 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: (((((((((((((((((((((((a20 == 0 && a17 <= 0) && a8 == 15) && a21 <= 1) && a16 == 4) && 1 <= a21) || ((((((a16 <= 6 && 6 <= a16) && a17 <= 0) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((1 <= a20 && a20 <= 1) && a21 <= 1) && 1 <= a21)) || ((((((13 <= a8 && a16 <= 4) && 4 <= a16) && a21 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 13)) || (((a8 == 15 && a21 <= 1) && 1 <= a21) && 5 == a16)) || (((((1 <= a17 && a8 == 15) && a17 <= 1) && a21 <= 1) && a16 == 4) && 1 <= a21)) || (6 <= a16 && a7 == 1)) || !(\old(a21) == 1)) || !(1 <= \old(a20))) || ((a7 == 1 && a20 == 1) && a17 == 1)) || !(\old(a20) <= 1)) || ((((1 <= a17 && 6 <= a16) && a17 <= 1) && a21 <= 1) && 1 <= a21)) || !(\old(a17) == 1)) || ((14 == a8 && a21 <= 1) && 1 <= a21)) || !(5 == \old(a16))) || ((a7 == 1 && a21 <= 1) && 1 <= a21)) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8)) || (a7 == 1 && a16 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 129.3s, OverallIterations: 19, TraceHistogramMax: 6, AutomataDifference: 47.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 513 SDtfs, 7405 SDslu, 914 SDs, 0 SdLazy, 17965 SolverSat, 1735 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 547 GetRequests, 207 SyntacticMatches, 14 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1645 ImplicationChecksByTransitivity, 36.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2287occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 968 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 219 PreInvPairs, 273 NumberOfFragments, 1390 HoareAnnotationTreeSize, 219 FomulaSimplifications, 22717 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9652 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 77.4s InterpolantComputationTime, 4039 NumberOfCodeBlocks, 4039 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 4020 ConstructedInterpolants, 0 QuantifiedInterpolants, 9407232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 2813/3150 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...