/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:26:14,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:26:14,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:26:14,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:26:14,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:26:14,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:26:14,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:26:14,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:26:14,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:26:14,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:26:14,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:26:14,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:26:14,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:26:14,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:26:14,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:26:14,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:26:14,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:26:14,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:26:14,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:26:14,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:26:14,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:26:14,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:26:14,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:26:14,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:26:14,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:26:14,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:26:14,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:26:14,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:26:14,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:26:14,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:26:14,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:26:14,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:26:14,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:26:14,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:26:14,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:26:14,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:26:14,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:26:14,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:26:14,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:26:14,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:26:14,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:26:14,650 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 [2020-09-21 11:26:14,705 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:26:14,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:26:14,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:26:14,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:26:14,707 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:26:14,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:26:14,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:26:14,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:26:14,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:26:14,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:26:14,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:26:14,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:26:14,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:26:14,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:26:14,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:26:14,712 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:26:14,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:26:14,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:26:14,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:26:14,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:26:14,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:26:14,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:26:14,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:26:14,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:26:14,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:26:14,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:26:14,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:26:14,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:26:14,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:26:14,716 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:26:15,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:26:15,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:26:15,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:26:15,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:26:15,236 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:26:15,237 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label29.c [2020-09-21 11:26:15,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594571db4/f40fd47f16074edc96301d207688a939/FLAG9978da441 [2020-09-21 11:26:16,020 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:26:16,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label29.c [2020-09-21 11:26:16,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594571db4/f40fd47f16074edc96301d207688a939/FLAG9978da441 [2020-09-21 11:26:16,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594571db4/f40fd47f16074edc96301d207688a939 [2020-09-21 11:26:16,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:26:16,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:26:16,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:16,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:26:16,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:26:16,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:16" (1/1) ... [2020-09-21 11:26:16,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12391971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:16, skipping insertion in model container [2020-09-21 11:26:16,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:16" (1/1) ... [2020-09-21 11:26:16,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:26:16,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:26:16,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:16,939 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:26:17,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:17,100 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:26:17,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17 WrapperNode [2020-09-21 11:26:17,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:17,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:26:17,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:26:17,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:26:17,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (1/1) ... [2020-09-21 11:26:17,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (1/1) ... [2020-09-21 11:26:17,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (1/1) ... [2020-09-21 11:26:17,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (1/1) ... [2020-09-21 11:26:17,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (1/1) ... [2020-09-21 11:26:17,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (1/1) ... [2020-09-21 11:26:17,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (1/1) ... [2020-09-21 11:26:17,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:26:17,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:26:17,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:26:17,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:26:17,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (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 [2020-09-21 11:26:17,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:26:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:26:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:26:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:26:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:26:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:26:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:26:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:26:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:26:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:26:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:26:18,487 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:26:18,487 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:26:18,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:18 BoogieIcfgContainer [2020-09-21 11:26:18,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:26:18,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:26:18,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:26:18,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:26:18,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:26:16" (1/3) ... [2020-09-21 11:26:18,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a88647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:18, skipping insertion in model container [2020-09-21 11:26:18,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:17" (2/3) ... [2020-09-21 11:26:18,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a88647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:18, skipping insertion in model container [2020-09-21 11:26:18,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:18" (3/3) ... [2020-09-21 11:26:18,505 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label29.c [2020-09-21 11:26:18,518 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:26:18,530 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:26:18,552 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:26:18,587 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:26:18,588 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:26:18,588 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:26:18,588 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:26:18,588 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:26:18,589 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:26:18,589 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:26:18,589 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:26:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-21 11:26:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 11:26:18,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:18,636 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] [2020-09-21 11:26:18,636 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:18,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:18,645 INFO L82 PathProgramCache]: Analyzing trace with hash 370140070, now seen corresponding path program 1 times [2020-09-21 11:26:18,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:18,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489992660] [2020-09-21 11:26:18,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:19,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:19,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:19,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:19,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:19,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:26:19,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:26:19,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:26:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:26:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:19,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:19,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:19,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:19,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:19,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:19,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:19,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:19,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:26:19,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:19,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:19,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:19,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489992660] [2020-09-21 11:26:19,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:26:19,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:26:19,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165788247] [2020-09-21 11:26:19,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:26:19,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:19,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:26:19,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:26:19,437 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2020-09-21 11:26:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:21,140 INFO L93 Difference]: Finished difference Result 649 states and 1102 transitions. [2020-09-21 11:26:21,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:26:21,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2020-09-21 11:26:21,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:21,164 INFO L225 Difference]: With dead ends: 649 [2020-09-21 11:26:21,164 INFO L226 Difference]: Without dead ends: 339 [2020-09-21 11:26:21,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:21,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-21 11:26:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 328. [2020-09-21 11:26:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-21 11:26:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 471 transitions. [2020-09-21 11:26:21,271 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 471 transitions. Word has length 108 [2020-09-21 11:26:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:21,272 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 471 transitions. [2020-09-21 11:26:21,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:26:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 471 transitions. [2020-09-21 11:26:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-21 11:26:21,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:21,280 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:26:21,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:26:21,281 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:21,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1897502023, now seen corresponding path program 1 times [2020-09-21 11:26:21,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:21,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829481437] [2020-09-21 11:26:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:21,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:21,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:21,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:21,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:21,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-21 11:26:21,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:21,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:26:21,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:26:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:26:21,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:21,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:21,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:21,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:21,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:21,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:21,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:21,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:26:21,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:21,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:21,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:21,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 23 [2020-09-21 11:26:21,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:21,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:21,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:21,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:21,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:21,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:26:21,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:26:21,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:21,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:21,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:26:21,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:21,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829481437] [2020-09-21 11:26:21,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:26:21,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:26:21,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786698954] [2020-09-21 11:26:21,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:26:21,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:21,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:26:21,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:21,631 INFO L87 Difference]: Start difference. First operand 328 states and 471 transitions. Second operand 8 states. [2020-09-21 11:26:24,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:24,236 INFO L93 Difference]: Finished difference Result 1268 states and 1897 transitions. [2020-09-21 11:26:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:26:24,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-09-21 11:26:24,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:24,245 INFO L225 Difference]: With dead ends: 1268 [2020-09-21 11:26:24,245 INFO L226 Difference]: Without dead ends: 946 [2020-09-21 11:26:24,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:26:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-09-21 11:26:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 927. [2020-09-21 11:26:24,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-09-21 11:26:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1251 transitions. [2020-09-21 11:26:24,348 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1251 transitions. Word has length 120 [2020-09-21 11:26:24,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:24,348 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1251 transitions. [2020-09-21 11:26:24,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:26:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1251 transitions. [2020-09-21 11:26:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:26:24,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:24,365 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:26:24,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:26:24,366 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:24,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:24,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1438415473, now seen corresponding path program 1 times [2020-09-21 11:26:24,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:24,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975764384] [2020-09-21 11:26:24,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:24,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:24,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:24,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:24,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:24,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:26:24,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:24,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:26:24,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-21 11:26:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-21 11:26:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:24,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:24,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:24,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:24,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:24,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:24,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:24,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:24,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:24,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:24,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:24,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:24,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:26:24,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:24,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:26:24,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:24,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975764384] [2020-09-21 11:26:24,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:24,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:26:24,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411966272] [2020-09-21 11:26:24,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:26:24,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:24,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:26:24,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:24,621 INFO L87 Difference]: Start difference. First operand 927 states and 1251 transitions. Second operand 5 states. [2020-09-21 11:26:26,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:26,132 INFO L93 Difference]: Finished difference Result 2150 states and 2971 transitions. [2020-09-21 11:26:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:26:26,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-09-21 11:26:26,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:26,140 INFO L225 Difference]: With dead ends: 2150 [2020-09-21 11:26:26,140 INFO L226 Difference]: Without dead ends: 1229 [2020-09-21 11:26:26,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:26:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-09-21 11:26:26,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1223. [2020-09-21 11:26:26,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-09-21 11:26:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1600 transitions. [2020-09-21 11:26:26,199 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1600 transitions. Word has length 121 [2020-09-21 11:26:26,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:26,200 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1600 transitions. [2020-09-21 11:26:26,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:26:26,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1600 transitions. [2020-09-21 11:26:26,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-21 11:26:26,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:26,207 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:26,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:26:26,211 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:26,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1338197515, now seen corresponding path program 1 times [2020-09-21 11:26:26,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:26,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209382870] [2020-09-21 11:26:26,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:26,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:26:26,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -19 [2020-09-21 11:26:26,301 FATAL L256 erpolLogProxyWrapper]: Difference in width: 19 [2020-09-21 11:26:26,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:26,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-21 11:26:26,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:26,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:26:26,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:26,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:26,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-21 11:26:26,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 11:26:26,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:26,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:26,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:26,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:26,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:26,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:26,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:26,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:26,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:26,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:26,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:26,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:26,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:26,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:26,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:26,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:26:26,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:26,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:26:26,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:26:26,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:26,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209382870] [2020-09-21 11:26:26,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:26,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 11:26:26,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297429932] [2020-09-21 11:26:26,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:26:26,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:26,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:26:26,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:26:26,669 INFO L87 Difference]: Start difference. First operand 1223 states and 1600 transitions. Second operand 6 states. [2020-09-21 11:26:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:28,278 INFO L93 Difference]: Finished difference Result 2612 states and 3433 transitions. [2020-09-21 11:26:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:26:28,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2020-09-21 11:26:28,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:28,289 INFO L225 Difference]: With dead ends: 2612 [2020-09-21 11:26:28,289 INFO L226 Difference]: Without dead ends: 1227 [2020-09-21 11:26:28,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:28,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-09-21 11:26:28,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1223. [2020-09-21 11:26:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-09-21 11:26:28,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1584 transitions. [2020-09-21 11:26:28,351 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1584 transitions. Word has length 122 [2020-09-21 11:26:28,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:28,351 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1584 transitions. [2020-09-21 11:26:28,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:26:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1584 transitions. [2020-09-21 11:26:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 11:26:28,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:28,355 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-09-21 11:26:28,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:26:28,356 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:28,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:28,357 INFO L82 PathProgramCache]: Analyzing trace with hash -615798614, now seen corresponding path program 1 times [2020-09-21 11:26:28,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:28,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444212475] [2020-09-21 11:26:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:28,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:28,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:28,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:28,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:28,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-21 11:26:28,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:28,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:26:28,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:26:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-21 11:26:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:28,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:28,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:28,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:28,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:28,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:28,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:28,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:28,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:28,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:28,634 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:28,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:28,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:26:28,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:28,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:28,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:26:28,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:26:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:28,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:28,655 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:28,655 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:28,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:28,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:26:28,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:28,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:28,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:26:28,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-21 11:26:28,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444212475] [2020-09-21 11:26:28,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:28,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 11:26:28,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137951623] [2020-09-21 11:26:28,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:26:28,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:28,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:26:28,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:26:28,689 INFO L87 Difference]: Start difference. First operand 1223 states and 1584 transitions. Second operand 6 states. [2020-09-21 11:26:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:30,564 INFO L93 Difference]: Finished difference Result 2447 states and 3200 transitions. [2020-09-21 11:26:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:26:30,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-09-21 11:26:30,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:30,578 INFO L225 Difference]: With dead ends: 2447 [2020-09-21 11:26:30,578 INFO L226 Difference]: Without dead ends: 1230 [2020-09-21 11:26:30,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2020-09-21 11:26:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1223. [2020-09-21 11:26:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-09-21 11:26:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1477 transitions. [2020-09-21 11:26:30,626 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1477 transitions. Word has length 129 [2020-09-21 11:26:30,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:30,627 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1477 transitions. [2020-09-21 11:26:30,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:26:30,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1477 transitions. [2020-09-21 11:26:30,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-21 11:26:30,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:30,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:30,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:26:30,633 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:30,633 INFO L82 PathProgramCache]: Analyzing trace with hash -129586454, now seen corresponding path program 1 times [2020-09-21 11:26:30,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:30,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437734313] [2020-09-21 11:26:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:30,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:30,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:30,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:30,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:30,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-21 11:26:30,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:30,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:26:30,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:26:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-21 11:26:30,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:30,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:30,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:30,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:30,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:30,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:30,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:30,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:30,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:30,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:30,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:30,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:30,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:30,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:30,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:30,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:30,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:26:30,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:30,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:30,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:26:30,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:30,890 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:30,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437734313] [2020-09-21 11:26:30,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:30,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:26:30,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562310914] [2020-09-21 11:26:30,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:26:30,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:26:30,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:30,893 INFO L87 Difference]: Start difference. First operand 1223 states and 1477 transitions. Second operand 5 states. [2020-09-21 11:26:32,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:32,136 INFO L93 Difference]: Finished difference Result 3320 states and 4128 transitions. [2020-09-21 11:26:32,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:26:32,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-09-21 11:26:32,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:32,152 INFO L225 Difference]: With dead ends: 3320 [2020-09-21 11:26:32,152 INFO L226 Difference]: Without dead ends: 2103 [2020-09-21 11:26:32,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:26:32,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2020-09-21 11:26:32,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 2099. [2020-09-21 11:26:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2099 states. [2020-09-21 11:26:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 2515 transitions. [2020-09-21 11:26:32,218 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 2515 transitions. Word has length 140 [2020-09-21 11:26:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:32,218 INFO L479 AbstractCegarLoop]: Abstraction has 2099 states and 2515 transitions. [2020-09-21 11:26:32,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:26:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 2515 transitions. [2020-09-21 11:26:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-21 11:26:32,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:32,226 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:26:32,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:26:32,227 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:32,227 INFO L82 PathProgramCache]: Analyzing trace with hash 643131591, now seen corresponding path program 1 times [2020-09-21 11:26:32,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:32,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741915419] [2020-09-21 11:26:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:32,278 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:32,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:32,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:32,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:32,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-21 11:26:32,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:32,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:26:32,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:26:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:26:32,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:32,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:32,364 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:32,364 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:32,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:32,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:32,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:32,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:32,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:32,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:32,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:32,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:32,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:32,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:32,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:32,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 11:26:32,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:26:32,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:26:32,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:32,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-21 11:26:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:32,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:32,454 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:32,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:32,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:32,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 11:26:32,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:32,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:32,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:32,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-21 11:26:32,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 69 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:26:32,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741915419] [2020-09-21 11:26:32,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:32,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:26:32,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326921545] [2020-09-21 11:26:32,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:26:32,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:32,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:26:32,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:32,545 INFO L87 Difference]: Start difference. First operand 2099 states and 2515 transitions. Second operand 8 states. [2020-09-21 11:26:33,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:33,692 INFO L93 Difference]: Finished difference Result 4097 states and 5152 transitions. [2020-09-21 11:26:33,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:26:33,693 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2020-09-21 11:26:33,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:33,708 INFO L225 Difference]: With dead ends: 4097 [2020-09-21 11:26:33,708 INFO L226 Difference]: Without dead ends: 2004 [2020-09-21 11:26:33,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:26:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2020-09-21 11:26:33,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1948. [2020-09-21 11:26:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-09-21 11:26:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2254 transitions. [2020-09-21 11:26:33,808 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2254 transitions. Word has length 185 [2020-09-21 11:26:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:33,809 INFO L479 AbstractCegarLoop]: Abstraction has 1948 states and 2254 transitions. [2020-09-21 11:26:33,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:26:33,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2254 transitions. [2020-09-21 11:26:33,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-21 11:26:33,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:33,817 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:33,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:26:33,817 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:33,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:33,817 INFO L82 PathProgramCache]: Analyzing trace with hash -111083078, now seen corresponding path program 1 times [2020-09-21 11:26:33,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:33,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089567012] [2020-09-21 11:26:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:33,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:33,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:33,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:33,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:33,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-21 11:26:33,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:33,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:26:33,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 11:26:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:26:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:33,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:33,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:33,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:33,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:33,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:33,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:33,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:33,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:34,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:34,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:34,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:34,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:34,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:34,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:26:34,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:34,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:34,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:34,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:34,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:34,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:26:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:34,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:34,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:34,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:34,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:34,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:26:34,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:34,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:34,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:26:34,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:26:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:34,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:34,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:34,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:34,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:34,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 11:26:34,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:34,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:26:34,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:34,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:26:34,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 11:26:34,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089567012] [2020-09-21 11:26:34,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:34,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:26:34,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253478879] [2020-09-21 11:26:34,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:26:34,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:34,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:26:34,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:34,155 INFO L87 Difference]: Start difference. First operand 1948 states and 2254 transitions. Second operand 7 states. [2020-09-21 11:26:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:36,189 INFO L93 Difference]: Finished difference Result 4755 states and 5524 transitions. [2020-09-21 11:26:36,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:26:36,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-09-21 11:26:36,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:36,198 INFO L225 Difference]: With dead ends: 4755 [2020-09-21 11:26:36,198 INFO L226 Difference]: Without dead ends: 1781 [2020-09-21 11:26:36,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:26:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2020-09-21 11:26:36,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2020-09-21 11:26:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-09-21 11:26:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 1952 transitions. [2020-09-21 11:26:36,249 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 1952 transitions. Word has length 197 [2020-09-21 11:26:36,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:36,249 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 1952 transitions. [2020-09-21 11:26:36,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:26:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 1952 transitions. [2020-09-21 11:26:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-21 11:26:36,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:36,256 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:26:36,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:26:36,257 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:36,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:36,257 INFO L82 PathProgramCache]: Analyzing trace with hash -719379124, now seen corresponding path program 1 times [2020-09-21 11:26:36,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:36,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777905177] [2020-09-21 11:26:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-09-21 11:26:36,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:26:36,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 11:26:36,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-21 11:26:36,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:36,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:36,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:36,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:36,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:26:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:36,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:26:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:36,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:26:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 11:26:36,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:26:36,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:36,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:26:36,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:26:36,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777905177] [2020-09-21 11:26:36,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:36,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:26:36,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324997309] [2020-09-21 11:26:36,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:26:36,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:36,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:26:36,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:36,584 INFO L87 Difference]: Start difference. First operand 1781 states and 1952 transitions. Second operand 7 states. [2020-09-21 11:26:38,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:38,495 INFO L93 Difference]: Finished difference Result 3453 states and 3818 transitions. [2020-09-21 11:26:38,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:26:38,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-09-21 11:26:38,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:38,506 INFO L225 Difference]: With dead ends: 3453 [2020-09-21 11:26:38,507 INFO L226 Difference]: Without dead ends: 1352 [2020-09-21 11:26:38,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:26:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-09-21 11:26:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1348. [2020-09-21 11:26:38,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1348 states. [2020-09-21 11:26:38,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1415 transitions. [2020-09-21 11:26:38,542 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1415 transitions. Word has length 219 [2020-09-21 11:26:38,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:38,542 INFO L479 AbstractCegarLoop]: Abstraction has 1348 states and 1415 transitions. [2020-09-21 11:26:38,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:26:38,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1415 transitions. [2020-09-21 11:26:38,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-21 11:26:38,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:38,550 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:38,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:26:38,550 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:38,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1204013048, now seen corresponding path program 1 times [2020-09-21 11:26:38,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:38,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894066841] [2020-09-21 11:26:38,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:38,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:26:38,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -39 [2020-09-21 11:26:38,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 39 [2020-09-21 11:26:38,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:38,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-09-21 11:26:38,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:38,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:26:38,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 11:26:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:26:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:38,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:38,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:38,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:38,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:38,715 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:38,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:38,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:38,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:38,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:38,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:38,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:38,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:38,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:26:38,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:38,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:38,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:38,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:38,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:38,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:26:38,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:26:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:38,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:38,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:38,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:38,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:38,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:26:38,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:26:38,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:26:38,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:26:38,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:26:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:38,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:38,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:38,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:38,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:38,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:26:38,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:38,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:38,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-21 11:26:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:38,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:38,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-21 11:26:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:38,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:38,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:38,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:38,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:38,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 11:26:38,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:38,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:38,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:38,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:38,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-21 11:26:38,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:38,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 217 proven. 68 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-09-21 11:26:39,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894066841] [2020-09-21 11:26:39,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:39,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:26:39,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642820795] [2020-09-21 11:26:39,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:26:39,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:39,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:26:39,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:39,066 INFO L87 Difference]: Start difference. First operand 1348 states and 1415 transitions. Second operand 8 states. [2020-09-21 11:26:40,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:40,824 INFO L93 Difference]: Finished difference Result 2545 states and 2697 transitions. [2020-09-21 11:26:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:26:40,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 302 [2020-09-21 11:26:40,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:40,831 INFO L225 Difference]: With dead ends: 2545 [2020-09-21 11:26:40,831 INFO L226 Difference]: Without dead ends: 1487 [2020-09-21 11:26:40,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:26:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2020-09-21 11:26:40,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1486. [2020-09-21 11:26:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1486 states. [2020-09-21 11:26:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1556 transitions. [2020-09-21 11:26:40,868 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1556 transitions. Word has length 302 [2020-09-21 11:26:40,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:40,869 INFO L479 AbstractCegarLoop]: Abstraction has 1486 states and 1556 transitions. [2020-09-21 11:26:40,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:26:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1556 transitions. [2020-09-21 11:26:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-09-21 11:26:40,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:40,877 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-09-21 11:26:40,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:26:40,877 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:40,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:40,878 INFO L82 PathProgramCache]: Analyzing trace with hash 684255108, now seen corresponding path program 1 times [2020-09-21 11:26:40,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:40,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627181693] [2020-09-21 11:26:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:40,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 9 [2020-09-21 11:26:40,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -157 [2020-09-21 11:26:40,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 158 [2020-09-21 11:26:40,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:40,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-09-21 11:26:40,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:40,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:26:40,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:40,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-21 11:26:40,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:26:40,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:41,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:41,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:41,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:41,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:41,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:41,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:41,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:41,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:41,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:41,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:41,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:41,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:41,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:41,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:26:41,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:41,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:41,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:41,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:41,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:41,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:41,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:41,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:26:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:41,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:41,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:41,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:41,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:41,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 11:26:41,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:41,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:41,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-21 11:26:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:41,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:41,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:41,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:41,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:41,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:26:41,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:41,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:41,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:26:41,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:41,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 11:26:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:41,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:26:41,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:41,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:41,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:41,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 11:26:41,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:26:41,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:26:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 310 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-09-21 11:26:41,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627181693] [2020-09-21 11:26:41,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:41,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:26:41,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478444018] [2020-09-21 11:26:41,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:26:41,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:41,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:26:41,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:41,505 INFO L87 Difference]: Start difference. First operand 1486 states and 1556 transitions. Second operand 7 states. [2020-09-21 11:26:42,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:42,623 INFO L93 Difference]: Finished difference Result 2531 states and 2658 transitions. [2020-09-21 11:26:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:26:42,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 311 [2020-09-21 11:26:42,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:42,629 INFO L225 Difference]: With dead ends: 2531 [2020-09-21 11:26:42,629 INFO L226 Difference]: Without dead ends: 1336 [2020-09-21 11:26:42,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:26:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2020-09-21 11:26:42,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1188. [2020-09-21 11:26:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2020-09-21 11:26:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1225 transitions. [2020-09-21 11:26:42,658 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1225 transitions. Word has length 311 [2020-09-21 11:26:42,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:42,658 INFO L479 AbstractCegarLoop]: Abstraction has 1188 states and 1225 transitions. [2020-09-21 11:26:42,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:26:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1225 transitions. [2020-09-21 11:26:42,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-09-21 11:26:42,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:42,665 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:42,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:26:42,666 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:42,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:42,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1944696862, now seen corresponding path program 1 times [2020-09-21 11:26:42,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:42,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585236336] [2020-09-21 11:26:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:26:42,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -62 [2020-09-21 11:26:42,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 62 [2020-09-21 11:26:42,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-09-21 11:26:42,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:26:42,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 11:26:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:26:42,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:42,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:42,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:42,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-21 11:26:42,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:42,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:26:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:42,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:26:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:26:42,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:42,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:26:42,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:42,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:26:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:26:42,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:42,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-21 11:26:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:42,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:43,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-21 11:26:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:43,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:43,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:43,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:43,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:43,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 11:26:43,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:43,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:43,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:43,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-21 11:26:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:43,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 221 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2020-09-21 11:26:43,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585236336] [2020-09-21 11:26:43,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:43,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 11:26:43,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866829091] [2020-09-21 11:26:43,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:26:43,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:43,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:26:43,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:26:43,125 INFO L87 Difference]: Start difference. First operand 1188 states and 1225 transitions. Second operand 6 states. [2020-09-21 11:26:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:43,618 INFO L93 Difference]: Finished difference Result 1785 states and 1842 transitions. [2020-09-21 11:26:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:26:43,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 325 [2020-09-21 11:26:43,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:43,620 INFO L225 Difference]: With dead ends: 1785 [2020-09-21 11:26:43,620 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:26:43,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:43,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:26:43,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:26:43,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:26:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:26:43,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 325 [2020-09-21 11:26:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:43,625 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:26:43,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:26:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:26:43,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:26:43,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:26:43,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:26:45,103 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 124 [2020-09-21 11:26:45,558 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 124 [2020-09-21 11:26:47,386 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-09-21 11:26:48,187 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 61 [2020-09-21 11:26:48,954 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 61 [2020-09-21 11:26:48,959 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:26:48,959 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-21 11:26:48,960 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:26:48,960 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,960 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,960 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,960 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,960 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,960 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-21 11:26:48,961 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,962 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,963 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-21 11:26:48,963 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,963 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-21 11:26:48,963 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-21 11:26:48,963 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-21 11:26:48,963 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-21 11:26:48,963 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-21 11:26:48,964 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,965 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 478) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-21 11:26:48,966 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,967 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-21 11:26:48,968 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,969 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-21 11:26:48,970 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,971 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:26:48,972 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-21 11:26:48,973 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,974 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-21 11:26:48,975 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-21 11:26:48,976 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-21 11:26:48,977 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-21 11:26:48,978 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-21 11:26:48,978 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,978 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,978 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,978 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse14 (= |old(~a19~0)| 1)) (.cse19 (= |old(~a25~0)| 1)) (.cse9 (= |old(~a11~0)| 1)) (.cse21 (= ~a17~0 |old(~a17~0)|)) (.cse22 (= ~a25~0 1)) (.cse20 (= ~a28~0 |old(~a28~0)|)) (.cse15 (= ~a11~0 |old(~a11~0)|)) (.cse16 (= ~a25~0 |old(~a25~0)|)) (.cse17 (= ~a17~0 8)) (.cse18 (= ~a19~0 |old(~a19~0)|))) (let ((.cse6 (not (<= 10 |old(~a28~0)|))) (.cse13 (and .cse20 .cse15 .cse16 .cse17 .cse18)) (.cse4 (not (<= 9 |old(~a28~0)|))) (.cse10 (and .cse20 .cse15 .cse17 .cse22 .cse18)) (.cse11 (not (= 8 |old(~a17~0)|))) (.cse8 (= 7 |old(~a28~0)|)) (.cse5 (and .cse20 .cse21 .cse15 .cse16 .cse18)) (.cse7 (not .cse9)) (.cse12 (not (<= |old(~a28~0)| 7))) (.cse0 (not .cse19)) (.cse1 (not (<= |old(~a17~0)| 8))) (.cse2 (and .cse20 .cse21 .cse15 .cse22 .cse18)) (.cse3 (not .cse14))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse3 .cse5 .cse6) (or .cse1 .cse5 .cse6 .cse7) (or .cse8 .cse1 .cse5 (not (<= |old(~a28~0)| 8)) (not (<= |old(~a25~0)| 0)) .cse9) (or .cse0 .cse10 .cse11 .cse6) (or .cse8 .cse1 .cse5 .cse7 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse12 .cse13 .cse11 .cse9) (or .cse14 (and .cse15 .cse16 .cse17 (= 7 ~a28~0) .cse18) .cse19 .cse11 (not (= ~a21~0 1)) (not .cse8)) (or .cse3 .cse13 .cse11 .cse4) (or .cse0 .cse3 .cse10 .cse11) (or .cse8 .cse1 .cse3 .cse5 .cse7) (or .cse12 .cse0 .cse1 .cse2 .cse3)))) [2020-09-21 11:26:48,978 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-21 11:26:48,979 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,980 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-21 11:26:48,981 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-21 11:26:48,982 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-21 11:26:48,983 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-21 11:26:48,984 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:26:48,985 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-21 11:26:48,985 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:26:48,985 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:26:48,985 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-21 11:26:48,985 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-21 11:26:48,985 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:26:48,985 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a17~0 8) (<= ~a28~0 7) (<= ~a25~0 0)) [2020-09-21 11:26:48,985 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:26:48,985 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:26:48,986 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-09-21 11:26:48,986 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (= 7 ~a28~0))) (let ((.cse8 (<= ~a28~0 7)) (.cse5 (not .cse11)) (.cse9 (<= 9 ~a28~0)) (.cse2 (= ~a17~0 8)) (.cse3 (= ~a25~0 1)) (.cse10 (= ~a25~0 ~a11~0)) (.cse7 (= ~a11~0 1)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse4 (= ~a19~0 1)) (.cse1 (<= 10 ~a28~0)) (.cse6 (<= ~a17~0 8))) (or (= 8 |old(~a28~0)|) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (not (= |old(~a19~0)| 1)) (not (<= |old(~a28~0)| 8)) (and .cse0 .cse4 .cse3 .cse8 .cse6) (and .cse0 (<= ~a28~0 8) .cse5 .cse6 (<= ~a25~0 0)) (and .cse0 .cse2 .cse8) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse9 .cse4 .cse3 .cse6) (and .cse0 .cse4 .cse2 .cse3) (and .cse10 .cse5 .cse7 .cse6) (and .cse0 .cse9 .cse4 .cse2) (and (= ~a21~0 1) .cse2 (not .cse4) .cse11 .cse7 (not .cse3)) (and .cse10 .cse4 .cse6 .cse7) (and .cse1 .cse6 .cse7) (and .cse0 .cse4 .cse1 .cse6) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-09-21 11:26:48,986 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:26:48,986 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:26:48,986 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (= 7 ~a28~0))) (let ((.cse8 (<= ~a28~0 7)) (.cse5 (not .cse11)) (.cse9 (<= 9 ~a28~0)) (.cse2 (= ~a17~0 8)) (.cse3 (= ~a25~0 1)) (.cse10 (= ~a25~0 ~a11~0)) (.cse7 (= ~a11~0 1)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse4 (= ~a19~0 1)) (.cse1 (<= 10 ~a28~0)) (.cse6 (<= ~a17~0 8))) (or (= 8 |old(~a28~0)|) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (not (= |old(~a19~0)| 1)) (not (<= |old(~a28~0)| 8)) (and .cse0 .cse4 .cse3 .cse8 .cse6) (and .cse0 (<= ~a28~0 8) .cse5 .cse6 (<= ~a25~0 0)) (and .cse0 .cse2 .cse8) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse9 .cse4 .cse3 .cse6) (and .cse0 .cse4 .cse2 .cse3) (and .cse10 .cse5 .cse7 .cse6) (and .cse0 .cse9 .cse4 .cse2) (and (= ~a21~0 1) .cse2 (not .cse4) .cse11 .cse7 (not .cse3)) (and .cse10 .cse4 .cse6 .cse7) (and .cse1 .cse6 .cse7) (and .cse0 .cse4 .cse1 .cse6) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-09-21 11:26:48,987 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-21 11:26:48,987 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-21 11:26:49,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:26:49 BoogieIcfgContainer [2020-09-21 11:26:49,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:26:49,019 INFO L168 Benchmark]: Toolchain (without parser) took 32749.93 ms. Allocated memory was 142.6 MB in the beginning and 639.6 MB in the end (delta: 497.0 MB). Free memory was 104.2 MB in the beginning and 375.7 MB in the end (delta: -271.5 MB). Peak memory consumption was 461.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,019 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:26:49,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.63 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 103.5 MB in the beginning and 170.8 MB in the end (delta: -67.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,021 INFO L168 Benchmark]: Boogie Preprocessor took 114.95 ms. Allocated memory is still 205.5 MB. Free memory was 170.1 MB in the beginning and 165.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,022 INFO L168 Benchmark]: RCFGBuilder took 1277.87 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 165.5 MB in the beginning and 170.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 74.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,022 INFO L168 Benchmark]: TraceAbstraction took 30520.07 ms. Allocated memory was 234.4 MB in the beginning and 639.6 MB in the end (delta: 405.3 MB). Free memory was 170.6 MB in the beginning and 375.7 MB in the end (delta: -205.1 MB). Peak memory consumption was 436.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,026 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 825.63 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 103.5 MB in the beginning and 170.8 MB in the end (delta: -67.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.95 ms. Allocated memory is still 205.5 MB. Free memory was 170.1 MB in the beginning and 165.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1277.87 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 165.5 MB in the beginning and 170.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 74.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30520.07 ms. Allocated memory was 234.4 MB in the beginning and 639.6 MB in the end (delta: 405.3 MB). Free memory was 170.6 MB in the beginning and 375.7 MB in the end (delta: -205.1 MB). Peak memory consumption was 436.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 478]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((8 == \old(a28) || (((a11 == \old(a11) && 10 <= a28) && a17 == 8) && a25 == 1)) || (((a19 == 1 && !(7 == a28)) && a17 <= 8) && a11 == 1)) || !(\old(a19) == 1)) || !(\old(a28) <= 8)) || ((((a11 == \old(a11) && a19 == 1) && a25 == 1) && a28 <= 7) && a17 <= 8)) || ((((a11 == \old(a11) && a28 <= 8) && !(7 == a28)) && a17 <= 8) && a25 <= 0)) || ((a11 == \old(a11) && a17 == 8) && a28 <= 7)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || ((((a11 == \old(a11) && 9 <= a28) && a19 == 1) && a25 == 1) && a17 <= 8)) || (((a11 == \old(a11) && a19 == 1) && a17 == 8) && a25 == 1)) || (((a25 == a11 && !(7 == a28)) && a11 == 1) && a17 <= 8)) || (((a11 == \old(a11) && 9 <= a28) && a19 == 1) && a17 == 8)) || (((((a21 == 1 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1) && !(a25 == 1))) || (((a25 == a11 && a19 == 1) && a17 <= 8) && a11 == 1)) || ((10 <= a28 && a17 <= 8) && a11 == 1)) || (((a11 == \old(a11) && a19 == 1) && 10 <= a28) && a17 <= 8)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.0s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 19.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 426 SDtfs, 5558 SDslu, 550 SDs, 0 SdLazy, 10110 SolverSat, 1264 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2099occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 260 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 117 PreInvPairs, 167 NumberOfFragments, 894 HoareAnnotationTreeSize, 117 FomulaSimplifications, 104056 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5010 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2279 NumberOfCodeBlocks, 2279 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2267 ConstructedInterpolants, 0 QuantifiedInterpolants, 1214221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 1609/1712 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...