/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 enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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/Problem10_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:31:47,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:31:47,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:31:47,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:31:47,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:31:47,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:31:47,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:31:47,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:31:47,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:31:47,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:31:47,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:31:47,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:31:47,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:31:47,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:31:47,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:31:47,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:31:47,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:31:47,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:31:47,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:31:47,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:31:47,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:31:47,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:31:47,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:31:47,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:31:47,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:31:47,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:31:47,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:31:47,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:31:47,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:31:47,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:31:47,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:31:47,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:31:47,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:31:47,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:31:47,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:31:47,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:31:47,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:31:47,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:31:47,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:31:47,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:31:47,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:31:47,285 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 12:31:47,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:31:47,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:31:47,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:31:47,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:31:47,335 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:31:47,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:31:47,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:31:47,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:31:47,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:31:47,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:31:47,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:31:47,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:31:47,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:31:47,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:31:47,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:31:47,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:31:47,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:31:47,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:31:47,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:31:47,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:31:47,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:31:47,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:31:47,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:31:47,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:31:47,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:31:47,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:31:47,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:31:47,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:31:47,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:31:47,342 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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:31:47,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:31:47,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:31:47,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:31:47,788 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:31:47,789 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:31:47,790 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label43.c [2020-09-21 12:31:47,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c29dbc52d/252934dffe6c4856b1f5ef4c604e88a9/FLAGb4ec4a848 [2020-09-21 12:31:48,489 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:31:48,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label43.c [2020-09-21 12:31:48,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c29dbc52d/252934dffe6c4856b1f5ef4c604e88a9/FLAGb4ec4a848 [2020-09-21 12:31:48,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c29dbc52d/252934dffe6c4856b1f5ef4c604e88a9 [2020-09-21 12:31:48,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:31:48,724 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:31:48,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:31:48,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:31:48,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:31:48,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:31:48" (1/1) ... [2020-09-21 12:31:48,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:48, skipping insertion in model container [2020-09-21 12:31:48,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:31:48" (1/1) ... [2020-09-21 12:31:48,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:31:48,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:31:49,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:31:49,343 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:31:49,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:31:49,472 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:31:49,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49 WrapperNode [2020-09-21 12:31:49,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:31:49,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:31:49,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:31:49,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:31:49,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (1/1) ... [2020-09-21 12:31:49,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (1/1) ... [2020-09-21 12:31:49,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (1/1) ... [2020-09-21 12:31:49,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (1/1) ... [2020-09-21 12:31:49,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (1/1) ... [2020-09-21 12:31:49,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (1/1) ... [2020-09-21 12:31:49,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (1/1) ... [2020-09-21 12:31:49,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:31:49,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:31:49,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:31:49,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:31:49,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (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 12:31:49,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:31:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:31:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 12:31:49,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:31:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 12:31:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:31:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:31:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:31:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:31:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:31:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:31:51,005 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:31:51,005 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:31:51,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:31:51 BoogieIcfgContainer [2020-09-21 12:31:51,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:31:51,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:31:51,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:31:51,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:31:51,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:31:48" (1/3) ... [2020-09-21 12:31:51,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3a710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:31:51, skipping insertion in model container [2020-09-21 12:31:51,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:49" (2/3) ... [2020-09-21 12:31:51,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3a710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:31:51, skipping insertion in model container [2020-09-21 12:31:51,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:31:51" (3/3) ... [2020-09-21 12:31:51,021 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label43.c [2020-09-21 12:31:51,032 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:31:51,042 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:31:51,060 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:31:51,090 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:31:51,091 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:31:51,091 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:31:51,091 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:31:51,091 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:31:51,091 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:31:51,091 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:31:51,092 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:31:51,117 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 12:31:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:31:51,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:31:51,126 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] [2020-09-21 12:31:51,127 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:31:51,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:31:51,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1136502142, now seen corresponding path program 1 times [2020-09-21 12:31:51,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:31:51,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866876548] [2020-09-21 12:31:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:31:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:51,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:51,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:51,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 12:31:51,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:31:51,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-09-21 12:31:51,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:31:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:31:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:31:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:31:51,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:31:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:51,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:51,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:51,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:31:51,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:31:51,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:31:51,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:31:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:31:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:31:51,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:31:51,946 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 12:31:51,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866876548] [2020-09-21 12:31:51,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:31:51,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:31:51,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771063205] [2020-09-21 12:31:51,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:31:51,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:31:51,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:31:51,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:31:51,979 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-09-21 12:31:53,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:31:53,479 INFO L93 Difference]: Finished difference Result 596 states and 1022 transitions. [2020-09-21 12:31:53,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:31:53,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-09-21 12:31:53,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:31:53,499 INFO L225 Difference]: With dead ends: 596 [2020-09-21 12:31:53,499 INFO L226 Difference]: Without dead ends: 302 [2020-09-21 12:31:53,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:31:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-21 12:31:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-09-21 12:31:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-21 12:31:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-09-21 12:31:53,588 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 41 [2020-09-21 12:31:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:31:53,589 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-09-21 12:31:53,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:31:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-09-21 12:31:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-21 12:31:53,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:31:53,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:53,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:31:53,596 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:31:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:31:53,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1231039110, now seen corresponding path program 1 times [2020-09-21 12:31:53,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:31:53,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831815971] [2020-09-21 12:31:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:31:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:53,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:54,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:54,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 12:31:54,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:31:54,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 933 [2020-09-21 12:31:54,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:31:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 12:31:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 12:31:54,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:31:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:31:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:54,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:54,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:31:54,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:31:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:31:54,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:31:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:31:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:31:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:31:54,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:31:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:54,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:54,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:54,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 12:31:54,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:31:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 12:31:54,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:31:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:31:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 12:31:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:31:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:31:54,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831815971] [2020-09-21 12:31:54,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:31:54,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:31:54,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559908071] [2020-09-21 12:31:54,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:31:54,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:31:54,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:31:54,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:31:54,872 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 5 states. [2020-09-21 12:31:56,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:31:56,323 INFO L93 Difference]: Finished difference Result 886 states and 1373 transitions. [2020-09-21 12:31:56,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:31:56,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-09-21 12:31:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:31:56,337 INFO L225 Difference]: With dead ends: 886 [2020-09-21 12:31:56,337 INFO L226 Difference]: Without dead ends: 596 [2020-09-21 12:31:56,339 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 12:31:56,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-09-21 12:31:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 586. [2020-09-21 12:31:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-21 12:31:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 809 transitions. [2020-09-21 12:31:56,394 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 809 transitions. Word has length 111 [2020-09-21 12:31:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:31:56,395 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 809 transitions. [2020-09-21 12:31:56,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:31:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 809 transitions. [2020-09-21 12:31:56,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-21 12:31:56,405 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:31:56,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:56,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:31:56,405 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:31:56,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:31:56,411 INFO L82 PathProgramCache]: Analyzing trace with hash 884590309, now seen corresponding path program 1 times [2020-09-21 12:31:56,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:31:56,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68543013] [2020-09-21 12:31:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:31:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:56,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:56,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:57,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:57,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-21 12:31:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:31:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-21 12:31:57,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:31:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-21 12:31:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 12:31:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:31:57,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:31:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:57,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:57,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:57,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:31:57,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:31:57,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:31:57,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:31:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:31:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:31:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:31:57,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:31:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:57,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:57,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:31:57,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 12:31:57,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:31:57,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:31:57,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:31:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:31:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:31:57,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 12:31:57,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:31:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:31:57,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68543013] [2020-09-21 12:31:57,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:31:57,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:31:57,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910198376] [2020-09-21 12:31:57,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:31:57,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:31:57,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:31:57,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:31:57,699 INFO L87 Difference]: Start difference. First operand 586 states and 809 transitions. Second operand 6 states. [2020-09-21 12:31:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:31:59,378 INFO L93 Difference]: Finished difference Result 1462 states and 2099 transitions. [2020-09-21 12:31:59,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:31:59,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2020-09-21 12:31:59,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:31:59,385 INFO L225 Difference]: With dead ends: 1462 [2020-09-21 12:31:59,385 INFO L226 Difference]: Without dead ends: 882 [2020-09-21 12:31:59,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:31:59,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-09-21 12:31:59,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 735. [2020-09-21 12:31:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-21 12:31:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 991 transitions. [2020-09-21 12:31:59,418 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 991 transitions. Word has length 122 [2020-09-21 12:31:59,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:31:59,418 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 991 transitions. [2020-09-21 12:31:59,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:31:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 991 transitions. [2020-09-21 12:31:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-21 12:31:59,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:31:59,425 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 12:31:59,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:31:59,425 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:31:59,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:31:59,426 INFO L82 PathProgramCache]: Analyzing trace with hash -425157170, now seen corresponding path program 1 times [2020-09-21 12:31:59,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:31:59,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600683872] [2020-09-21 12:31:59,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:31:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:31:59,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:31:59,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:00,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:00,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:00,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-21 12:32:00,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:32:00,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:32:00,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-21 12:32:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:32:00,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:00,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:00,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:00,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:00,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:00,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:00,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:00,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:00,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:00,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:32:00,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:00,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:00,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:00,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 12:32:00,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:32:00,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:00,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:32:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:00,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:00,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:00,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 12:32:00,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-21 12:32:00,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:32:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-21 12:32:00,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600683872] [2020-09-21 12:32:00,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:00,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:32:00,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136359807] [2020-09-21 12:32:00,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:32:00,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:00,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:32:00,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:00,905 INFO L87 Difference]: Start difference. First operand 735 states and 991 transitions. Second operand 5 states. [2020-09-21 12:32:01,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:01,856 INFO L93 Difference]: Finished difference Result 1484 states and 2014 transitions. [2020-09-21 12:32:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:32:01,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2020-09-21 12:32:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:01,866 INFO L225 Difference]: With dead ends: 1484 [2020-09-21 12:32:01,867 INFO L226 Difference]: Without dead ends: 739 [2020-09-21 12:32:01,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:32:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-09-21 12:32:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 735. [2020-09-21 12:32:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-21 12:32:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 987 transitions. [2020-09-21 12:32:01,893 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 987 transitions. Word has length 193 [2020-09-21 12:32:01,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:01,894 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 987 transitions. [2020-09-21 12:32:01,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:32:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 987 transitions. [2020-09-21 12:32:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-21 12:32:01,899 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:01,899 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:01,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:32:01,899 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:01,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:01,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1943514195, now seen corresponding path program 1 times [2020-09-21 12:32:01,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:01,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846397136] [2020-09-21 12:32:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:01,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:02,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:02,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:02,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:02,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:02,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-21 12:32:02,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:32:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-21 12:32:02,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 12:32:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 12:32:02,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:03,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:03,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:03,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:03,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:03,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:03,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:03,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:03,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:03,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:32:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 12:32:03,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 12:32:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 12:32:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:03,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:03,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:32:03,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-21 12:32:03,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:32:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:32:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:03,473 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:32:03,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846397136] [2020-09-21 12:32:03,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:03,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:32:03,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393278015] [2020-09-21 12:32:03,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:32:03,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:03,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:32:03,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:32:03,477 INFO L87 Difference]: Start difference. First operand 735 states and 987 transitions. Second operand 7 states. [2020-09-21 12:32:05,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:05,265 INFO L93 Difference]: Finished difference Result 2164 states and 3164 transitions. [2020-09-21 12:32:05,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:32:05,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-09-21 12:32:05,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:05,273 INFO L225 Difference]: With dead ends: 2164 [2020-09-21 12:32:05,273 INFO L226 Difference]: Without dead ends: 819 [2020-09-21 12:32:05,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:32:05,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-09-21 12:32:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 747. [2020-09-21 12:32:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-09-21 12:32:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 976 transitions. [2020-09-21 12:32:05,349 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 976 transitions. Word has length 214 [2020-09-21 12:32:05,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:05,349 INFO L479 AbstractCegarLoop]: Abstraction has 747 states and 976 transitions. [2020-09-21 12:32:05,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:32:05,350 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 976 transitions. [2020-09-21 12:32:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-21 12:32:05,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:05,354 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 12:32:05,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:32:05,354 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:05,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:05,355 INFO L82 PathProgramCache]: Analyzing trace with hash -226613686, now seen corresponding path program 1 times [2020-09-21 12:32:05,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:05,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291680559] [2020-09-21 12:32:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:05,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:06,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:06,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:06,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-21 12:32:06,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:32:06,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-21 12:32:06,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 12:32:06,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:32:06,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:06,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:06,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:06,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:06,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:06,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:06,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:06,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:06,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:06,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:06,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 12:32:06,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:06,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 12:32:06,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:06,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 12:32:06,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:32:06,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:32:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:06,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:06,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:06,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 12:32:06,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:06,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-21 12:32:06,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:32:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-21 12:32:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:32:07,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291680559] [2020-09-21 12:32:07,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:07,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:32:07,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477435784] [2020-09-21 12:32:07,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:32:07,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:07,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:32:07,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:32:07,470 INFO L87 Difference]: Start difference. First operand 747 states and 976 transitions. Second operand 8 states. [2020-09-21 12:32:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:08,934 INFO L93 Difference]: Finished difference Result 1804 states and 2359 transitions. [2020-09-21 12:32:08,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:32:08,935 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 239 [2020-09-21 12:32:08,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:08,942 INFO L225 Difference]: With dead ends: 1804 [2020-09-21 12:32:08,942 INFO L226 Difference]: Without dead ends: 1063 [2020-09-21 12:32:08,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:32:08,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-09-21 12:32:08,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1049. [2020-09-21 12:32:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1049 states. [2020-09-21 12:32:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1272 transitions. [2020-09-21 12:32:08,982 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1272 transitions. Word has length 239 [2020-09-21 12:32:08,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:08,983 INFO L479 AbstractCegarLoop]: Abstraction has 1049 states and 1272 transitions. [2020-09-21 12:32:08,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:32:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1272 transitions. [2020-09-21 12:32:08,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-21 12:32:08,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:08,992 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 12:32:08,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:32:08,993 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:08,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:08,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1635854957, now seen corresponding path program 1 times [2020-09-21 12:32:08,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:08,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439270024] [2020-09-21 12:32:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:09,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:09,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:10,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:10,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-21 12:32:10,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:32:10,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:32:10,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-21 12:32:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:32:10,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:10,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:10,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:10,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:10,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:10,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:10,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:32:10,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:10,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:10,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:10,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:10,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:10,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 12:32:10,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:10,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 12:32:10,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-21 12:32:10,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:10,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 12:32:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:10,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:10,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:10,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 12:32:10,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:10,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-21 12:32:10,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:32:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-21 12:32:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:32:10,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439270024] [2020-09-21 12:32:10,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:10,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:32:10,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856867604] [2020-09-21 12:32:10,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:32:10,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:10,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:32:10,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:32:10,710 INFO L87 Difference]: Start difference. First operand 1049 states and 1272 transitions. Second operand 7 states. [2020-09-21 12:32:12,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:12,378 INFO L93 Difference]: Finished difference Result 2265 states and 2772 transitions. [2020-09-21 12:32:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:32:12,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-09-21 12:32:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:12,385 INFO L225 Difference]: With dead ends: 2265 [2020-09-21 12:32:12,385 INFO L226 Difference]: Without dead ends: 1222 [2020-09-21 12:32:12,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:32:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-09-21 12:32:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1202. [2020-09-21 12:32:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1202 states. [2020-09-21 12:32:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1448 transitions. [2020-09-21 12:32:12,426 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1448 transitions. Word has length 246 [2020-09-21 12:32:12,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:12,427 INFO L479 AbstractCegarLoop]: Abstraction has 1202 states and 1448 transitions. [2020-09-21 12:32:12,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:32:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1448 transitions. [2020-09-21 12:32:12,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-21 12:32:12,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:12,432 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 12:32:12,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:32:12,433 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:12,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:12,433 INFO L82 PathProgramCache]: Analyzing trace with hash 485390993, now seen corresponding path program 1 times [2020-09-21 12:32:12,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:12,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372139097] [2020-09-21 12:32:12,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:12,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:12,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:13,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:13,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:13,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-21 12:32:13,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:32:13,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:32:13,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:32:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:32:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 12:32:13,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:13,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:13,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:13,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:13,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:13,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:32:13,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:32:13,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:13,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:13,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:13,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 12:32:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-21 12:32:13,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:32:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:32:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:13,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 12:32:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:13,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:13,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:13,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 12:32:13,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:13,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 12:32:13,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-21 12:32:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:32:14,040 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 68 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 12:32:14,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372139097] [2020-09-21 12:32:14,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:14,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:32:14,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63828590] [2020-09-21 12:32:14,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:32:14,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:14,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:32:14,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:32:14,043 INFO L87 Difference]: Start difference. First operand 1202 states and 1448 transitions. Second operand 7 states. [2020-09-21 12:32:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:15,461 INFO L93 Difference]: Finished difference Result 2553 states and 3076 transitions. [2020-09-21 12:32:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:32:15,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2020-09-21 12:32:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:15,468 INFO L225 Difference]: With dead ends: 2553 [2020-09-21 12:32:15,468 INFO L226 Difference]: Without dead ends: 1357 [2020-09-21 12:32:15,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:32:15,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2020-09-21 12:32:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1345. [2020-09-21 12:32:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2020-09-21 12:32:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1605 transitions. [2020-09-21 12:32:15,507 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1605 transitions. Word has length 248 [2020-09-21 12:32:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:15,507 INFO L479 AbstractCegarLoop]: Abstraction has 1345 states and 1605 transitions. [2020-09-21 12:32:15,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:32:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1605 transitions. [2020-09-21 12:32:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-09-21 12:32:15,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:15,513 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 12:32:15,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:32:15,513 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:15,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:15,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1679109429, now seen corresponding path program 1 times [2020-09-21 12:32:15,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:15,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153359340] [2020-09-21 12:32:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:15,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:15,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:16,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:16,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-21 12:32:16,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:32:16,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-21 12:32:16,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 12:32:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 12:32:16,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:16,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:16,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:16,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:16,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:16,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:32:16,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:16,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:16,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:32:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:16,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 12:32:16,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-21 12:32:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 12:32:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:16,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 12:32:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:17,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:17,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:32:17,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:17,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-21 12:32:17,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:17,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:17,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:32:17,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:32:17,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:32:17,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153359340] [2020-09-21 12:32:17,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:17,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:32:17,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396206247] [2020-09-21 12:32:17,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:32:17,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:17,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:32:17,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:32:17,215 INFO L87 Difference]: Start difference. First operand 1345 states and 1605 transitions. Second operand 7 states. [2020-09-21 12:32:18,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:18,548 INFO L93 Difference]: Finished difference Result 3020 states and 3802 transitions. [2020-09-21 12:32:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:32:18,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-09-21 12:32:18,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:18,557 INFO L225 Difference]: With dead ends: 3020 [2020-09-21 12:32:18,557 INFO L226 Difference]: Without dead ends: 1824 [2020-09-21 12:32:18,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:32:18,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2020-09-21 12:32:18,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1786. [2020-09-21 12:32:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2020-09-21 12:32:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2133 transitions. [2020-09-21 12:32:18,609 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2133 transitions. Word has length 250 [2020-09-21 12:32:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:18,609 INFO L479 AbstractCegarLoop]: Abstraction has 1786 states and 2133 transitions. [2020-09-21 12:32:18,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:32:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2133 transitions. [2020-09-21 12:32:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-21 12:32:18,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:18,615 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 12:32:18,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:32:18,615 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:18,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:18,616 INFO L82 PathProgramCache]: Analyzing trace with hash -903736891, now seen corresponding path program 1 times [2020-09-21 12:32:18,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:18,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846058226] [2020-09-21 12:32:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:18,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:19,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:19,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:19,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-21 12:32:19,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:32:19,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:32:19,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:19,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:19,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 12:32:19,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-21 12:32:19,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:19,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:19,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:19,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:19,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:19,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 12:32:19,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:19,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:19,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:19,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 12:32:19,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-21 12:32:19,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 12:32:19,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:19,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 12:32:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:20,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:20,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-21 12:32:20,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:20,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-21 12:32:20,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:32:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 12:32:20,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:32:20,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846058226] [2020-09-21 12:32:20,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:20,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:32:20,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16724353] [2020-09-21 12:32:20,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:32:20,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:20,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:32:20,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:32:20,246 INFO L87 Difference]: Start difference. First operand 1786 states and 2133 transitions. Second operand 7 states. [2020-09-21 12:32:21,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:21,853 INFO L93 Difference]: Finished difference Result 4027 states and 4892 transitions. [2020-09-21 12:32:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:32:21,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 258 [2020-09-21 12:32:21,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:21,863 INFO L225 Difference]: With dead ends: 4027 [2020-09-21 12:32:21,863 INFO L226 Difference]: Without dead ends: 2390 [2020-09-21 12:32:21,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:32:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-09-21 12:32:21,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2382. [2020-09-21 12:32:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-09-21 12:32:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 2822 transitions. [2020-09-21 12:32:21,921 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 2822 transitions. Word has length 258 [2020-09-21 12:32:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:21,921 INFO L479 AbstractCegarLoop]: Abstraction has 2382 states and 2822 transitions. [2020-09-21 12:32:21,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:32:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 2822 transitions. [2020-09-21 12:32:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-21 12:32:21,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:21,928 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:21,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:32:21,929 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:21,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1632173521, now seen corresponding path program 1 times [2020-09-21 12:32:21,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:21,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563823452] [2020-09-21 12:32:21,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:22,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:22,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:22,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-09-21 12:32:22,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-21 12:32:22,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-09-21 12:32:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 12:32:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:22,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:22,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:22,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:22,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:22,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:22,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:32:22,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:22,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:22,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:22,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:22,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:22,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-21 12:32:22,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:22,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 12:32:22,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:22,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:22,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:22,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-21 12:32:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:22,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:22,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:22,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-21 12:32:22,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:22,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 12:32:22,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 12:32:22,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-09-21 12:32:22,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563823452] [2020-09-21 12:32:22,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:22,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:32:22,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919657904] [2020-09-21 12:32:22,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:32:22,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:22,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:32:22,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:22,803 INFO L87 Difference]: Start difference. First operand 2382 states and 2822 transitions. Second operand 5 states. [2020-09-21 12:32:24,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:24,009 INFO L93 Difference]: Finished difference Result 4617 states and 5490 transitions. [2020-09-21 12:32:24,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:32:24,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-09-21 12:32:24,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:24,024 INFO L225 Difference]: With dead ends: 4617 [2020-09-21 12:32:24,024 INFO L226 Difference]: Without dead ends: 2384 [2020-09-21 12:32:24,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 12:32:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2020-09-21 12:32:24,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2235. [2020-09-21 12:32:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-09-21 12:32:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2524 transitions. [2020-09-21 12:32:24,081 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2524 transitions. Word has length 280 [2020-09-21 12:32:24,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:24,081 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2524 transitions. [2020-09-21 12:32:24,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:32:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2524 transitions. [2020-09-21 12:32:24,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-09-21 12:32:24,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:24,091 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:24,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:32:24,092 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:24,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1868143846, now seen corresponding path program 1 times [2020-09-21 12:32:24,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:24,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523143927] [2020-09-21 12:32:24,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:24,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:24,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:24,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:25,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-21 12:32:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:25,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:25,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:25,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:25,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:25,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:25,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:32:25,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:25,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:25,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:25,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:25,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 12:32:25,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 12:32:25,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 12:32:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:25,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 12:32:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:25,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:25,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:25,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 12:32:25,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:25,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-21 12:32:25,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:32:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:32:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:32:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:25,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-21 12:32:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:25,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:25,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:25,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 12:32:25,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:25,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 12:32:25,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-21 12:32:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:25,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 180 proven. 76 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-09-21 12:32:26,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523143927] [2020-09-21 12:32:26,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:26,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:32:26,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521417672] [2020-09-21 12:32:26,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:32:26,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:26,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:32:26,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:32:26,010 INFO L87 Difference]: Start difference. First operand 2235 states and 2524 transitions. Second operand 7 states. [2020-09-21 12:32:27,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:27,791 INFO L93 Difference]: Finished difference Result 4637 states and 5276 transitions. [2020-09-21 12:32:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:32:27,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 363 [2020-09-21 12:32:27,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:27,800 INFO L225 Difference]: With dead ends: 4637 [2020-09-21 12:32:27,801 INFO L226 Difference]: Without dead ends: 2551 [2020-09-21 12:32:27,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:32:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2020-09-21 12:32:27,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2527. [2020-09-21 12:32:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2527 states. [2020-09-21 12:32:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 2828 transitions. [2020-09-21 12:32:27,862 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 2828 transitions. Word has length 363 [2020-09-21 12:32:27,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:27,862 INFO L479 AbstractCegarLoop]: Abstraction has 2527 states and 2828 transitions. [2020-09-21 12:32:27,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:32:27,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 2828 transitions. [2020-09-21 12:32:27,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-09-21 12:32:27,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:27,873 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:27,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:32:27,873 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:27,873 INFO L82 PathProgramCache]: Analyzing trace with hash 594601621, now seen corresponding path program 1 times [2020-09-21 12:32:27,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:27,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347888763] [2020-09-21 12:32:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:28,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:28,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:28,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:28,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:28,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 397 [2020-09-21 12:32:28,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:32:28,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-21 12:32:28,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:32:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-09-21 12:32:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-21 12:32:28,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:29,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:29,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:29,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:29,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:32:29,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:29,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:32:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:29,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:29,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 12:32:29,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:32:29,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 12:32:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:29,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:29,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:29,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 12:32:29,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:29,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:32:29,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:29,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:29,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:29,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-21 12:32:29,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-21 12:32:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:29,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:29,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:29,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 12:32:29,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:32:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 12:32:29,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 12:32:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2020-09-21 12:32:29,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347888763] [2020-09-21 12:32:29,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:32:29,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:32:29,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280022597] [2020-09-21 12:32:29,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:32:29,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:29,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:32:29,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:29,504 INFO L87 Difference]: Start difference. First operand 2527 states and 2828 transitions. Second operand 5 states. [2020-09-21 12:32:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:30,621 INFO L93 Difference]: Finished difference Result 3248 states and 3672 transitions. [2020-09-21 12:32:30,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:32:30,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2020-09-21 12:32:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:30,622 INFO L225 Difference]: With dead ends: 3248 [2020-09-21 12:32:30,622 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:32:30,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 12:32:30,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:32:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:32:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:32:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:32:30,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 382 [2020-09-21 12:32:30,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:30,628 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:32:30,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:32:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:32:30,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:32:30,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 12:32:30,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:32:31,597 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 116 [2020-09-21 12:32:31,979 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 116 [2020-09-21 12:32:32,497 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 53 [2020-09-21 12:32:32,810 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 43 [2020-09-21 12:32:33,129 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 43 [2020-09-21 12:32:33,133 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:32:33,134 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-21 12:32:33,134 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:32:33,134 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 12:32:33,134 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,134 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,134 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 12:32:33,135 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 12:32:33,136 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 12:32:33,136 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 12:32:33,136 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 12:32:33,136 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 12:32:33,136 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 12:32:33,136 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 12:32:33,137 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,138 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,139 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,139 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 12:32:33,139 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 12:32:33,139 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 12:32:33,139 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 12:32:33,139 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 12:32:33,139 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 12:32:33,140 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 12:32:33,140 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 12:32:33,140 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 12:32:33,140 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 12:32:33,140 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,140 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,140 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 12:32:33,142 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 12:32:33,143 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,144 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 12:32:33,145 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,146 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,147 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 12:32:33,148 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 12:32:33,149 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 12:32:33,149 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 12:32:33,149 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 12:32:33,149 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 12:32:33,149 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 12:32:33,149 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 12:32:33,149 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a19~0)| 9))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or (not (<= 23 |old(~a1~0)|)) .cse0 .cse1) (or .cse0 (not (<= 2 |old(~a10~0)|)) .cse1) (or .cse0 (not (= 9 |old(~a19~0)|))) (or (not (<= |old(~a19~0)| 7)) (not (<= 7 |old(~a19~0)|)) .cse0 (not (= 14 ~a4~0)) (not (<= 0 (+ |old(~a1~0)| 12))) (not (= ~a12~0 0))) (or (not (<= |old(~a10~0)| 0)) .cse0 .cse1) (or .cse0 (not (<= |old(~a10~0)| 2)) (not (= 10 |old(~a19~0)|))))) [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,150 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 12:32:33,151 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,152 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 12:32:33,153 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 12:32:33,154 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 12:32:33,155 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23))) [2020-09-21 12:32:33,155 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 12:32:33,155 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= 2 ~a10~0)) (and (<= 23 ~a1~0) .cse0) (and (<= 0 (+ ~a1~0 12)) (<= ~a19~0 7) (= 14 ~a4~0) (<= 7 ~a19~0) (= ~a12~0 0)) (not (<= |old(~a10~0)| 0)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (= ~a19~0 9) (and (<= ~a10~0 0) .cse0) (and (<= ~a10~0 2) (= ~a19~0 10)))) [2020-09-21 12:32:33,156 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 12:32:33,156 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 12:32:33,156 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= 2 ~a10~0)) (and (<= 23 ~a1~0) .cse0) (and (<= 0 (+ ~a1~0 12)) (<= ~a19~0 7) (= 14 ~a4~0) (<= 7 ~a19~0) (= ~a12~0 0)) (not (<= |old(~a10~0)| 0)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (= ~a19~0 9) (and (<= ~a10~0 0) .cse0) (and (<= ~a10~0 2) (= ~a19~0 10)))) [2020-09-21 12:32:33,156 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 12:32:33,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:32:33 BoogieIcfgContainer [2020-09-21 12:32:33,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:32:33,181 INFO L168 Benchmark]: Toolchain (without parser) took 44459.68 ms. Allocated memory was 140.0 MB in the beginning and 783.3 MB in the end (delta: 643.3 MB). Free memory was 102.0 MB in the beginning and 585.3 MB in the end (delta: -483.4 MB). Peak memory consumption was 621.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:33,182 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 12:32:33,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.37 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.7 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:33,183 INFO L168 Benchmark]: Boogie Preprocessor took 119.79 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 166.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:33,184 INFO L168 Benchmark]: RCFGBuilder took 1418.22 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.9 MB in the beginning and 182.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:33,185 INFO L168 Benchmark]: TraceAbstraction took 42165.85 ms. Allocated memory was 239.1 MB in the beginning and 783.3 MB in the end (delta: 544.2 MB). Free memory was 181.4 MB in the beginning and 585.3 MB in the end (delta: -403.9 MB). Peak memory consumption was 601.8 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:33,188 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.37 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.7 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.79 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 166.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1418.22 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.9 MB in the beginning and 182.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42165.85 ms. Allocated memory was 239.1 MB in the beginning and 783.3 MB in the end (delta: 544.2 MB). Free memory was 181.4 MB in the beginning and 585.3 MB in the end (delta: -403.9 MB). Peak memory consumption was 601.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((!(23 <= \old(a1)) || (a19 <= 9 && 2 <= a10)) || (23 <= a1 && a19 <= 9)) || ((((0 <= a1 + 12 && a19 <= 7) && 14 == a4) && 7 <= a19) && a12 == 0)) || !(\old(a10) <= 0)) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || a19 == 9) || (a10 <= 0 && a19 <= 9)) || (a10 <= 2 && a19 == 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.5s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 19.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 4980 SDslu, 387 SDs, 0 SdLazy, 10626 SolverSat, 1331 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2527occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 504 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 126 PreInvPairs, 196 NumberOfFragments, 332 HoareAnnotationTreeSize, 126 FomulaSimplifications, 252112 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2847 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 2947 NumberOfCodeBlocks, 2947 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2934 ConstructedInterpolants, 0 QuantifiedInterpolants, 2646379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 1873/2040 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...