/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:05:04,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:05:04,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:05:04,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:05:04,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:05:04,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:05:04,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:05:04,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:05:04,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:05:04,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:05:04,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:05:04,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:05:04,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:05:04,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:05:04,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:05:04,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:05:04,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:05:04,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:05:04,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:05:04,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:05:04,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:05:04,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:05:04,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:05:04,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:05:04,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:05:04,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:05:04,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:05:04,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:05:04,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:05:04,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:05:04,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:05:04,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:05:04,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:05:04,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:05:04,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:05:04,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:05:04,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:05:04,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:05:04,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:05:04,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:05:04,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:05:04,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 13:05:04,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:05:04,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:05:04,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:05:04,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:05:04,418 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:05:04,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:05:04,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:05:04,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:05:04,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:05:04,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:05:04,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:05:04,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:05:04,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:05:04,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:05:04,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:05:04,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:05:04,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:05:04,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:05:04,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:05:04,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:05:04,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:05:04,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:05:04,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:05:04,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:05:04,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:05:04,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:05:04,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:05:04,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:05:04,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:05:04,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 13:05:04,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:05:04,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:05:04,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:05:04,731 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:05:04,732 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:05:04,732 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label21.c [2020-10-12 13:05:04,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86f599e60/097d7066745849ffabb8365c3001b14c/FLAGf030e3b8c [2020-10-12 13:05:05,360 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:05:05,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label21.c [2020-10-12 13:05:05,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86f599e60/097d7066745849ffabb8365c3001b14c/FLAGf030e3b8c [2020-10-12 13:05:05,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86f599e60/097d7066745849ffabb8365c3001b14c [2020-10-12 13:05:05,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:05:05,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:05:05,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:05:05,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:05:05,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:05:05,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:05:05" (1/1) ... [2020-10-12 13:05:05,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:05, skipping insertion in model container [2020-10-12 13:05:05,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:05:05" (1/1) ... [2020-10-12 13:05:05,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:05:05,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:05:06,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:05:06,346 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:05:06,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:05:06,479 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:05:06,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06 WrapperNode [2020-10-12 13:05:06,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:05:06,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:05:06,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:05:06,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:05:06,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... [2020-10-12 13:05:06,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... [2020-10-12 13:05:06,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... [2020-10-12 13:05:06,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... [2020-10-12 13:05:06,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... [2020-10-12 13:05:06,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... [2020-10-12 13:05:06,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... [2020-10-12 13:05:06,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:05:06,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:05:06,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:05:06,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:05:06,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:05:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:05:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:05:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:05:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:05:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:05:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:05:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:05:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:05:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:05:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:05:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:05:07,942 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:05:07,942 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:05:07,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:05:07 BoogieIcfgContainer [2020-10-12 13:05:07,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:05:07,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:05:07,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:05:07,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:05:07,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:05:05" (1/3) ... [2020-10-12 13:05:07,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341adf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:05:07, skipping insertion in model container [2020-10-12 13:05:07,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:06" (2/3) ... [2020-10-12 13:05:07,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341adf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:05:07, skipping insertion in model container [2020-10-12 13:05:07,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:05:07" (3/3) ... [2020-10-12 13:05:07,958 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label21.c [2020-10-12 13:05:07,972 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:05:07,981 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:05:07,999 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:05:08,031 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:05:08,031 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:05:08,032 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:05:08,032 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:05:08,032 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:05:08,032 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:05:08,032 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:05:08,033 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:05:08,067 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-12 13:05:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-12 13:05:08,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:08,084 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] [2020-10-12 13:05:08,084 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:08,093 INFO L82 PathProgramCache]: Analyzing trace with hash -689743650, now seen corresponding path program 1 times [2020-10-12 13:05:08,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:08,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889771490] [2020-10-12 13:05:08,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:08,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:08,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:08,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 13:05:08,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:08,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-12 13:05:08,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:05:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:05:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 13:05:08,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:05:08,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:08,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:08,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:08,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:08,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:08,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:05:08,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:05:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:08,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:05:08,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889771490] [2020-10-12 13:05:08,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:05:08,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 13:05:08,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780429931] [2020-10-12 13:05:08,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 13:05:08,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:08,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 13:05:08,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 13:05:08,844 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-10-12 13:05:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:10,238 INFO L93 Difference]: Finished difference Result 588 states and 1005 transitions. [2020-10-12 13:05:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:05:10,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-12 13:05:10,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:10,277 INFO L225 Difference]: With dead ends: 588 [2020-10-12 13:05:10,277 INFO L226 Difference]: Without dead ends: 296 [2020-10-12 13:05:10,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:05:10,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-12 13:05:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-10-12 13:05:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-12 13:05:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 407 transitions. [2020-10-12 13:05:10,377 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 407 transitions. Word has length 33 [2020-10-12 13:05:10,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:10,377 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 407 transitions. [2020-10-12 13:05:10,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 13:05:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 407 transitions. [2020-10-12 13:05:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 13:05:10,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:10,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:05:10,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:05:10,383 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:10,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:10,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1397364058, now seen corresponding path program 1 times [2020-10-12 13:05:10,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:10,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532742384] [2020-10-12 13:05:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:10,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:10,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:11,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:11,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:05:11,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:05:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-10-12 13:05:11,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:05:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:05:11,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 13:05:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:05:11,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:11,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:11,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:11,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:11,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:11,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:05:11,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:05:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:11,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:05:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:11,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:11,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:11,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:11,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:05:11,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:05:11,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 13:05:11,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:05:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:05:11,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 13:05:11,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532742384] [2020-10-12 13:05:11,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:05:11,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:05:11,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347416080] [2020-10-12 13:05:11,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:05:11,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:11,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:05:11,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:05:11,409 INFO L87 Difference]: Start difference. First operand 296 states and 407 transitions. Second operand 7 states. [2020-10-12 13:05:13,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:13,205 INFO L93 Difference]: Finished difference Result 594 states and 874 transitions. [2020-10-12 13:05:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:05:13,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-10-12 13:05:13,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:13,216 INFO L225 Difference]: With dead ends: 594 [2020-10-12 13:05:13,217 INFO L226 Difference]: Without dead ends: 592 [2020-10-12 13:05:13,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:05:13,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-10-12 13:05:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 586. [2020-10-12 13:05:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-10-12 13:05:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 857 transitions. [2020-10-12 13:05:13,262 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 857 transitions. Word has length 103 [2020-10-12 13:05:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:13,263 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 857 transitions. [2020-10-12 13:05:13,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:05:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 857 transitions. [2020-10-12 13:05:13,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 13:05:13,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:13,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:05:13,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:05:13,268 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:13,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:13,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1013478446, now seen corresponding path program 1 times [2020-10-12 13:05:13,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:13,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262121122] [2020-10-12 13:05:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:13,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:13,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:13,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:14,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:14,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:05:14,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:05:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 982 [2020-10-12 13:05:14,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:05:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:05:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:05:14,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:14,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:14,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:14,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:14,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:14,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:14,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:05:14,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:14,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:14,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:14,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:05:14,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:14,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:05:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:14,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:14,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:14,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 13:05:14,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-12 13:05:14,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:05:14,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 13:05:14,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:05:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:05:14,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262121122] [2020-10-12 13:05:14,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:05:14,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 13:05:14,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471132155] [2020-10-12 13:05:14,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:05:14,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:14,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:05:14,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:05:14,761 INFO L87 Difference]: Start difference. First operand 586 states and 857 transitions. Second operand 8 states. [2020-10-12 13:05:16,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:16,787 INFO L93 Difference]: Finished difference Result 1770 states and 2704 transitions. [2020-10-12 13:05:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 13:05:16,787 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-10-12 13:05:16,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:16,796 INFO L225 Difference]: With dead ends: 1770 [2020-10-12 13:05:16,796 INFO L226 Difference]: Without dead ends: 1190 [2020-10-12 13:05:16,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-12 13:05:16,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2020-10-12 13:05:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 888. [2020-10-12 13:05:16,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-10-12 13:05:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1239 transitions. [2020-10-12 13:05:16,870 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1239 transitions. Word has length 131 [2020-10-12 13:05:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:16,871 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 1239 transitions. [2020-10-12 13:05:16,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:05:16,871 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1239 transitions. [2020-10-12 13:05:16,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 13:05:16,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:16,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:05:16,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:05:16,877 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:16,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:16,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1627642498, now seen corresponding path program 1 times [2020-10-12 13:05:16,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:16,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742651779] [2020-10-12 13:05:16,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:16,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:17,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:17,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:17,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 13:05:17,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:05:17,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 876 [2020-10-12 13:05:17,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:17,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:05:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:05:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 13:05:17,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:17,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:17,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:17,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:17,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:17,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:17,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 13:05:17,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:05:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:05:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:17,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:18,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:18,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 13:05:18,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:18,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-12 13:05:18,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:05:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 13:05:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:05:18,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742651779] [2020-10-12 13:05:18,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:05:18,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:05:18,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119135584] [2020-10-12 13:05:18,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:05:18,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:18,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:05:18,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:05:18,229 INFO L87 Difference]: Start difference. First operand 888 states and 1239 transitions. Second operand 7 states. [2020-10-12 13:05:19,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:19,637 INFO L93 Difference]: Finished difference Result 1955 states and 2849 transitions. [2020-10-12 13:05:19,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:05:19,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-10-12 13:05:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:19,655 INFO L225 Difference]: With dead ends: 1955 [2020-10-12 13:05:19,655 INFO L226 Difference]: Without dead ends: 1216 [2020-10-12 13:05:19,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:05:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2020-10-12 13:05:19,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1194. [2020-10-12 13:05:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-12 13:05:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1544 transitions. [2020-10-12 13:05:19,707 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1544 transitions. Word has length 155 [2020-10-12 13:05:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:19,708 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1544 transitions. [2020-10-12 13:05:19,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:05:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1544 transitions. [2020-10-12 13:05:19,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-12 13:05:19,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:19,715 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:05:19,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:05:19,715 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:19,716 INFO L82 PathProgramCache]: Analyzing trace with hash -68853202, now seen corresponding path program 1 times [2020-10-12 13:05:19,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:19,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347998471] [2020-10-12 13:05:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:19,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:20,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:20,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:20,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-12 13:05:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:05:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-12 13:05:20,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-12 13:05:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 13:05:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:20,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:20,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:20,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:20,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:20,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:20,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:05:20,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:20,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:05:20,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:05:20,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:20,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:05:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:20,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:20,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:20,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:05:20,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:20,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:05:20,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 13:05:20,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 13:05:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:20,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:20,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:20,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 13:05:20,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:20,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 13:05:20,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:20,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:05:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 13:05:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:05:21,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347998471] [2020-10-12 13:05:21,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:05:21,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:05:21,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104776601] [2020-10-12 13:05:21,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:05:21,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:21,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:05:21,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:05:21,014 INFO L87 Difference]: Start difference. First operand 1194 states and 1544 transitions. Second operand 7 states. [2020-10-12 13:05:22,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:22,444 INFO L93 Difference]: Finished difference Result 2700 states and 3601 transitions. [2020-10-12 13:05:22,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:05:22,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-10-12 13:05:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:22,456 INFO L225 Difference]: With dead ends: 2700 [2020-10-12 13:05:22,456 INFO L226 Difference]: Without dead ends: 1655 [2020-10-12 13:05:22,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:05:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2020-10-12 13:05:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1204. [2020-10-12 13:05:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-10-12 13:05:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1518 transitions. [2020-10-12 13:05:22,508 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1518 transitions. Word has length 185 [2020-10-12 13:05:22,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:22,511 INFO L479 AbstractCegarLoop]: Abstraction has 1204 states and 1518 transitions. [2020-10-12 13:05:22,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:05:22,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1518 transitions. [2020-10-12 13:05:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-12 13:05:22,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:22,517 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:05:22,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:05:22,518 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash 418106165, now seen corresponding path program 1 times [2020-10-12 13:05:22,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:22,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487154628] [2020-10-12 13:05:22,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:22,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:22,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:23,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:23,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:23,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:23,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 13:05:23,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:05:23,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 993 [2020-10-12 13:05:23,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:23,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:23,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 13:05:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 13:05:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:23,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:23,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:23,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:23,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:23,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:05:23,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:05:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:05:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:23,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:05:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:23,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:05:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:05:23,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:05:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:05:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:23,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 13:05:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:23,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:23,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:23,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 13:05:23,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:23,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 13:05:23,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 13:05:23,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-12 13:05:23,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487154628] [2020-10-12 13:05:23,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:05:23,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:05:23,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404526492] [2020-10-12 13:05:23,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:05:23,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:23,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:05:23,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:05:23,837 INFO L87 Difference]: Start difference. First operand 1204 states and 1518 transitions. Second operand 5 states. [2020-10-12 13:05:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:24,693 INFO L93 Difference]: Finished difference Result 2279 states and 2917 transitions. [2020-10-12 13:05:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:05:24,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-10-12 13:05:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:24,700 INFO L225 Difference]: With dead ends: 2279 [2020-10-12 13:05:24,700 INFO L226 Difference]: Without dead ends: 1208 [2020-10-12 13:05:24,703 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 [2020-10-12 13:05:24,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-10-12 13:05:24,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1202. [2020-10-12 13:05:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1202 states. [2020-10-12 13:05:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1509 transitions. [2020-10-12 13:05:24,740 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1509 transitions. Word has length 194 [2020-10-12 13:05:24,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:24,741 INFO L479 AbstractCegarLoop]: Abstraction has 1202 states and 1509 transitions. [2020-10-12 13:05:24,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:05:24,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1509 transitions. [2020-10-12 13:05:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-12 13:05:24,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:24,748 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:05:24,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:05:24,748 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:24,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:24,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1123130213, now seen corresponding path program 1 times [2020-10-12 13:05:24,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:24,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202527117] [2020-10-12 13:05:24,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:24,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:24,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:25,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:25,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:25,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:26,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:28,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:28,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-12 13:05:28,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:05:28,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3250 [2020-10-12 13:05:28,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:05:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-12 13:05:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-12 13:05:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:28,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:28,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:28,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:28,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:28,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:28,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:05:28,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:28,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:05:28,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:28,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:05:28,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:05:28,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:05:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:28,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:28,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:28,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:05:28,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 13:05:28,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:05:28,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:28,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 13:05:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:28,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:28,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:28,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:28,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:05:28,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:05:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 13:05:28,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:05:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:05:28,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:28,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 13:05:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:28,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:28,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:28,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 13:05:28,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:28,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-12 13:05:28,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:28,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:05:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 13:05:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:05:28,866 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 223 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-12 13:05:28,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202527117] [2020-10-12 13:05:28,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:05:28,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:05:28,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155311032] [2020-10-12 13:05:28,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:05:28,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:28,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:05:28,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:05:28,871 INFO L87 Difference]: Start difference. First operand 1202 states and 1509 transitions. Second operand 7 states. [2020-10-12 13:05:33,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:33,249 INFO L93 Difference]: Finished difference Result 2710 states and 3436 transitions. [2020-10-12 13:05:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:05:33,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 306 [2020-10-12 13:05:33,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:33,253 INFO L225 Difference]: With dead ends: 2710 [2020-10-12 13:05:33,253 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 13:05:33,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:05:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 13:05:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 13:05:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 13:05:33,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 13:05:33,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2020-10-12 13:05:33,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:33,261 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 13:05:33,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:05:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 13:05:33,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 13:05:33,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:05:33,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 13:05:33,821 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 31 [2020-10-12 13:05:34,063 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2020-10-12 13:05:34,288 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2020-10-12 13:05:34,292 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:05:34,292 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)|)) [2020-10-12 13:05:34,292 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:05:34,292 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-10-12 13:05:34,293 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,293 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,293 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,293 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,293 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,293 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,293 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-12 13:05:34,294 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-10-12 13:05:34,295 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-10-12 13:05:34,295 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-10-12 13:05:34,295 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,295 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,295 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,295 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,295 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-12 13:05:34,296 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-12 13:05:34,297 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-12 13:05:34,297 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-10-12 13:05:34,297 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-10-12 13:05:34,297 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-10-12 13:05:34,297 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-10-12 13:05:34,297 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 85) no Hoare annotation was computed. [2020-10-12 13:05:34,297 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-12 13:05:34,298 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-10-12 13:05:34,299 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,300 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,300 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,300 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,300 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,300 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-10-12 13:05:34,300 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-10-12 13:05:34,300 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-10-12 13:05:34,301 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,302 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-10-12 13:05:34,303 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,304 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-12 13:05:34,305 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,306 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,307 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-12 13:05:34,307 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,307 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,307 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-10-12 13:05:34,307 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-10-12 13:05:34,307 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-10-12 13:05:34,307 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-12 13:05:34,308 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-12 13:05:34,308 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-12 13:05:34,308 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-12 13:05:34,308 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-12 13:05:34,308 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,309 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,310 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,310 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,310 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-10-12 13:05:34,310 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-10-12 13:05:34,311 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-10-12 13:05:34,312 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-10-12 13:05:34,314 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse0 (= 7 |old(~a19~0)|)) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse2 (not (= 2 |old(~a10~0)|))) (or .cse1 (not (= |old(~a10~0)| 1))) (or .cse0 (not (<= |old(~a10~0)| 0)) .cse1))) [2020-10-12 13:05:34,315 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-10-12 13:05:34,315 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-10-12 13:05:34,315 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-10-12 13:05:34,315 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,315 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,315 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,315 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-12 13:05:34,316 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,317 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-12 13:05:34,318 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,319 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-12 13:05:34,320 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-10-12 13:05:34,321 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:05:34,322 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= ~a19~0 9) (= 23 ~a1~0)) [2020-10-12 13:05:34,322 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 13:05:34,322 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:05:34,322 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a19~0 9) (= 23 ~a1~0) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a19~0)| 9)) (not (= 23 |old(~a1~0)|))) [2020-10-12 13:05:34,322 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-10-12 13:05:34,322 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (= 7 ~a19~0))) (let ((.cse0 (= ~a10~0 1)) (.cse2 (<= ~a19~0 9)) (.cse3 (not .cse1)) (.cse4 (= 0 |old(~a10~0)|))) (or (not (<= |old(~a10~0)| 0)) (and (<= 0 (+ ~a1~0 12)) .cse0 .cse1 (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0)) (not (<= 9 |old(~a19~0)|)) (and .cse2 .cse3 .cse4) (and (= ~a10~0 2) .cse2 .cse4) (and .cse0 .cse4) (and (<= 9 ~a19~0) .cse2 (= 23 ~a1~0) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 0) .cse3 .cse4) (not (= 23 |old(~a1~0)|))))) [2020-10-12 13:05:34,323 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-10-12 13:05:34,323 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-10-12 13:05:34,323 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (= 7 ~a19~0))) (let ((.cse0 (= ~a10~0 1)) (.cse2 (<= ~a19~0 9)) (.cse3 (not .cse1)) (.cse4 (= 0 |old(~a10~0)|))) (or (not (<= |old(~a10~0)| 0)) (and (<= 0 (+ ~a1~0 12)) .cse0 .cse1 (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0)) (not (<= 9 |old(~a19~0)|)) (and .cse2 .cse3 .cse4) (and (= ~a10~0 2) .cse2 .cse4) (and .cse0 .cse4) (and (<= 9 ~a19~0) .cse2 (= 23 ~a1~0) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 0) .cse3 .cse4) (not (= 23 |old(~a1~0)|))))) [2020-10-12 13:05:34,323 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-10-12 13:05:34,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 01:05:34 BoogieIcfgContainer [2020-10-12 13:05:34,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 13:05:34,360 INFO L168 Benchmark]: Toolchain (without parser) took 28692.31 ms. Allocated memory was 138.9 MB in the beginning and 643.3 MB in the end (delta: 504.4 MB). Free memory was 100.5 MB in the beginning and 141.1 MB in the end (delta: -40.6 MB). Peak memory consumption was 463.8 MB. Max. memory is 7.1 GB. [2020-10-12 13:05:34,366 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 13:05:34,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.30 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 168.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-10-12 13:05:34,368 INFO L168 Benchmark]: Boogie Preprocessor took 119.15 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 164.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-10-12 13:05:34,369 INFO L168 Benchmark]: RCFGBuilder took 1349.86 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 164.3 MB in the beginning and 180.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-10-12 13:05:34,372 INFO L168 Benchmark]: TraceAbstraction took 26407.00 ms. Allocated memory was 234.9 MB in the beginning and 643.3 MB in the end (delta: 408.4 MB). Free memory was 178.5 MB in the beginning and 141.1 MB in the end (delta: 37.4 MB). Peak memory consumption was 445.8 MB. Max. memory is 7.1 GB. [2020-10-12 13:05:34,385 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 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.30 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 168.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.15 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 164.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1349.86 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 164.3 MB in the beginning and 180.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26407.00 ms. Allocated memory was 234.9 MB in the beginning and 643.3 MB in the end (delta: 408.4 MB). Free memory was 178.5 MB in the beginning and 141.1 MB in the end (delta: 37.4 MB). Peak memory consumption was 445.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 85]: 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: ((((((((!(\old(a10) <= 0) || (((((0 <= a1 + 12 && a10 == 1) && 7 == a19) && 14 == a4) && a1 <= 33) && a12 == 0)) || !(9 <= \old(a19))) || ((a19 <= 9 && !(7 == a19)) && 0 == \old(a10))) || ((a10 == 2 && a19 <= 9) && 0 == \old(a10))) || (a10 == 1 && 0 == \old(a10))) || (((9 <= a19 && a19 <= 9) && 23 == a1) && a10 == \old(a10))) || !(\old(a19) <= 9)) || ((a10 <= 0 && !(7 == a19)) && 0 == \old(a10))) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 178 SDtfs, 3405 SDslu, 223 SDs, 0 SdLazy, 6461 SolverSat, 1394 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1204occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 787 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 49 PreInvPairs, 73 NumberOfFragments, 326 HoareAnnotationTreeSize, 49 FomulaSimplifications, 1893 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1698 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 1107 NumberOfCodeBlocks, 1107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1100 ConstructedInterpolants, 0 QuantifiedInterpolants, 698853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 599/632 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...