/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 SingleStatement --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:32:33,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:32:33,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:32:33,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:32:33,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:32:33,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:32:33,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:32:33,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:32:33,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:32:33,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:32:33,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:32:33,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:32:33,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:32:33,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:32:33,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:32:33,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:32:33,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:32:33,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:32:33,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:32:33,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:32:33,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:32:33,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:32:33,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:32:33,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:32:33,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:32:33,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:32:33,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:32:33,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:32:33,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:32:33,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:32:33,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:32:33,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:32:33,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:32:33,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:32:33,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:32:33,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:32:33,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:32:33,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:32:33,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:32:33,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:32:33,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:32:33,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:32:33,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:32:33,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:32:33,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:32:33,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:32:33,471 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:32:33,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:32:33,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:32:33,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:32:33,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:32:33,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:32:33,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:32:33,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:32:33,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:32:33,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:32:33,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:32:33,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:32:33,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:32:33,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:32:33,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:32:33,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:32:33,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:32:33,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:32:33,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:32:33,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:32:33,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:32:33,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:32:33,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:32:33,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:32:33,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:32:33,477 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 -> SingleStatement 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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:32:33,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:32:33,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:32:33,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:32:33,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:32:33,999 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:32:34,000 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 13:32:34,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdf243da2/d20af28a254e4ee49bd38cb1e812acf5/FLAG8560173fa [2020-09-25 13:32:34,724 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:32:34,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 13:32:34,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdf243da2/d20af28a254e4ee49bd38cb1e812acf5/FLAG8560173fa [2020-09-25 13:32:34,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdf243da2/d20af28a254e4ee49bd38cb1e812acf5 [2020-09-25 13:32:34,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:32:34,990 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:32:34,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:32:34,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:32:34,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:32:34,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:32:34" (1/1) ... [2020-09-25 13:32:35,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d876c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:34, skipping insertion in model container [2020-09-25 13:32:35,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:32:34" (1/1) ... [2020-09-25 13:32:35,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:32:35,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:32:35,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:32:35,588 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:32:35,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:32:35,856 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:32:35,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35 WrapperNode [2020-09-25 13:32:35,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:32:35,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:32:35,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:32:35,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:32:35,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... [2020-09-25 13:32:35,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... [2020-09-25 13:32:35,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... [2020-09-25 13:32:35,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... [2020-09-25 13:32:35,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... [2020-09-25 13:32:35,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... [2020-09-25 13:32:35,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... [2020-09-25 13:32:35,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:32:35,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:32:35,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:32:35,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:32:35,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:32:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:32:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:32:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 13:32:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:32:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 13:32:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:32:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:32:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 13:32:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:32:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:32:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:32:37,451 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:32:37,451 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:32:37,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:32:37 BoogieIcfgContainer [2020-09-25 13:32:37,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:32:37,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:32:37,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:32:37,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:32:37,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:32:34" (1/3) ... [2020-09-25 13:32:37,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb4822a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:32:37, skipping insertion in model container [2020-09-25 13:32:37,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:32:35" (2/3) ... [2020-09-25 13:32:37,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb4822a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:32:37, skipping insertion in model container [2020-09-25 13:32:37,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:32:37" (3/3) ... [2020-09-25 13:32:37,474 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-09-25 13:32:37,487 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:32:37,499 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:32:37,523 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:32:37,564 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:32:37,564 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:32:37,564 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:32:37,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:32:37,565 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:32:37,565 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:32:37,565 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:32:37,565 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:32:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 13:32:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 13:32:37,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:32:37,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:32:37,622 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:32:37,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:32:37,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1883432242, now seen corresponding path program 1 times [2020-09-25 13:32:37,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:32:37,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087928403] [2020-09-25 13:32:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:32:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:37,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:38,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:38,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:38,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:39,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:41,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:42,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:42,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:42,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 13:32:42,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:32:42,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4643 [2020-09-25 13:32:42,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:42,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:32:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:32:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 13:32:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:32:42,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:32:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:42,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:42,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:42,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:32:42,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:32:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 13:32:42,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:42,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:32:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:32:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:32:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:32:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:32:42,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087928403] [2020-09-25 13:32:42,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:32:42,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:32:42,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883666046] [2020-09-25 13:32:42,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:32:42,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:32:42,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:32:42,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:32:42,885 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 13:32:45,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:32:45,144 INFO L93 Difference]: Finished difference Result 1248 states and 1696 transitions. [2020-09-25 13:32:45,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:32:45,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-25 13:32:45,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:32:45,171 INFO L225 Difference]: With dead ends: 1248 [2020-09-25 13:32:45,171 INFO L226 Difference]: Without dead ends: 670 [2020-09-25 13:32:45,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:32:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-09-25 13:32:45,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 621. [2020-09-25 13:32:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-25 13:32:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 723 transitions. [2020-09-25 13:32:45,304 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 723 transitions. Word has length 111 [2020-09-25 13:32:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:32:45,305 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 723 transitions. [2020-09-25 13:32:45,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:32:45,306 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 723 transitions. [2020-09-25 13:32:45,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 13:32:45,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:32:45,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:32:45,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:32:45,316 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:32:45,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:32:45,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1592938585, now seen corresponding path program 1 times [2020-09-25 13:32:45,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:32:45,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678612002] [2020-09-25 13:32:45,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:32:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:45,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:45,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:46,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:46,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:46,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:50,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:50,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 13:32:50,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:32:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:32:50,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:50,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:32:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 13:32:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 13:32:50,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 13:32:50,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:32:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:50,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:50,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:32:50,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:32:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:32:50,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:50,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:32:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:32:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:32:50,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:32:50,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:32:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:50,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:32:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:32:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:32:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:32:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:32:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:32:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:32:50,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:32:50,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678612002] [2020-09-25 13:32:50,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:32:50,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 13:32:50,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196835664] [2020-09-25 13:32:50,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:32:50,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:32:50,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:32:50,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:32:50,677 INFO L87 Difference]: Start difference. First operand 621 states and 723 transitions. Second operand 5 states. [2020-09-25 13:32:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:32:52,764 INFO L93 Difference]: Finished difference Result 1400 states and 1694 transitions. [2020-09-25 13:32:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:32:52,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-09-25 13:32:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:32:52,776 INFO L225 Difference]: With dead ends: 1400 [2020-09-25 13:32:52,776 INFO L226 Difference]: Without dead ends: 801 [2020-09-25 13:32:52,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:32:52,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2020-09-25 13:32:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 776. [2020-09-25 13:32:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-09-25 13:32:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 898 transitions. [2020-09-25 13:32:52,820 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 898 transitions. Word has length 128 [2020-09-25 13:32:52,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:32:52,821 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 898 transitions. [2020-09-25 13:32:52,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:32:52,821 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 898 transitions. [2020-09-25 13:32:52,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 13:32:52,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:32:52,828 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-25 13:32:52,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:32:52,828 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:32:52,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:32:52,829 INFO L82 PathProgramCache]: Analyzing trace with hash 980037392, now seen corresponding path program 1 times [2020-09-25 13:32:52,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:32:52,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405592699] [2020-09-25 13:32:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:32:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:52,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:53,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:53,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:54,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:54,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:55,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:56,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:57,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:57,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 13:32:57,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:32:57,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 13:32:57,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:57,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:32:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 13:32:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:32:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:32:57,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:32:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:57,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:58,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:58,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:32:58,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:32:58,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 13:32:58,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:58,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:32:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:32:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:32:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:32:58,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:32:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:32:58,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:32:58,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:32:58,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:32:58,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:32:58,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:32:58,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:32:58,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:32:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:32:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:32:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:32:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:32:58,087 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:32:58,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405592699] [2020-09-25 13:32:58,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:32:58,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 13:32:58,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773414481] [2020-09-25 13:32:58,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:32:58,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:32:58,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:32:58,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:32:58,092 INFO L87 Difference]: Start difference. First operand 776 states and 898 transitions. Second operand 5 states. [2020-09-25 13:33:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:33:00,336 INFO L93 Difference]: Finished difference Result 1709 states and 2048 transitions. [2020-09-25 13:33:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:33:00,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-09-25 13:33:00,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:33:00,349 INFO L225 Difference]: With dead ends: 1709 [2020-09-25 13:33:00,350 INFO L226 Difference]: Without dead ends: 955 [2020-09-25 13:33:00,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:33:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-09-25 13:33:00,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 929. [2020-09-25 13:33:00,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-09-25 13:33:00,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1073 transitions. [2020-09-25 13:33:00,385 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1073 transitions. Word has length 133 [2020-09-25 13:33:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:33:00,386 INFO L479 AbstractCegarLoop]: Abstraction has 929 states and 1073 transitions. [2020-09-25 13:33:00,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:33:00,386 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1073 transitions. [2020-09-25 13:33:00,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-25 13:33:00,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:33:00,390 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 13:33:00,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:33:00,390 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:33:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:33:00,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1352270241, now seen corresponding path program 1 times [2020-09-25 13:33:00,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:33:00,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972734628] [2020-09-25 13:33:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:33:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:00,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:00,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:00,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:00,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:00,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:03,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:03,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:05,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:05,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:05,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 13:33:05,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:33:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-09-25 13:33:05,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:05,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:33:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 13:33:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 13:33:05,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:33:05,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:33:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:05,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:05,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:05,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:33:05,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:33:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:33:05,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:05,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:05,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:33:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:33:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:33:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:33:05,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:33:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:05,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:05,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:33:05,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:33:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 13:33:05,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:05,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:33:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:33:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:33:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:33:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:33:05,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972734628] [2020-09-25 13:33:05,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:33:05,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 13:33:05,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825427179] [2020-09-25 13:33:05,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:33:05,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:33:05,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:33:05,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:33:05,804 INFO L87 Difference]: Start difference. First operand 929 states and 1073 transitions. Second operand 5 states. [2020-09-25 13:33:07,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:33:07,809 INFO L93 Difference]: Finished difference Result 2455 states and 2925 transitions. [2020-09-25 13:33:07,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:33:07,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-09-25 13:33:07,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:33:07,824 INFO L225 Difference]: With dead ends: 2455 [2020-09-25 13:33:07,824 INFO L226 Difference]: Without dead ends: 1548 [2020-09-25 13:33:07,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:33:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2020-09-25 13:33:07,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1538. [2020-09-25 13:33:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2020-09-25 13:33:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 1760 transitions. [2020-09-25 13:33:07,900 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 1760 transitions. Word has length 140 [2020-09-25 13:33:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:33:07,901 INFO L479 AbstractCegarLoop]: Abstraction has 1538 states and 1760 transitions. [2020-09-25 13:33:07,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:33:07,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 1760 transitions. [2020-09-25 13:33:07,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 13:33:07,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:33:07,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:33:07,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:33:07,910 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:33:07,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:33:07,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2005749092, now seen corresponding path program 1 times [2020-09-25 13:33:07,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:33:07,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040100735] [2020-09-25 13:33:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:33:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:08,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:08,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:09,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:09,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:11,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:12,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:12,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:12,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 13:33:12,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 13:33:12,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 13:33:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:33:13,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:33:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:13,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:13,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:13,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:33:13,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:33:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:33:13,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:13,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:33:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:33:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:33:13,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:33:13,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:33:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:13,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:13,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:13,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 13:33:13,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:33:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 13:33:13,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:13,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:33:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:33:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:33:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:33:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:33:13,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040100735] [2020-09-25 13:33:13,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:33:13,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 13:33:13,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430433951] [2020-09-25 13:33:13,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:33:13,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:33:13,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:33:13,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:33:13,202 INFO L87 Difference]: Start difference. First operand 1538 states and 1760 transitions. Second operand 5 states. [2020-09-25 13:33:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:33:14,994 INFO L93 Difference]: Finished difference Result 4121 states and 4840 transitions. [2020-09-25 13:33:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:33:14,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-09-25 13:33:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:33:15,012 INFO L225 Difference]: With dead ends: 4121 [2020-09-25 13:33:15,012 INFO L226 Difference]: Without dead ends: 2605 [2020-09-25 13:33:15,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:33:15,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2020-09-25 13:33:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2295. [2020-09-25 13:33:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2295 states. [2020-09-25 13:33:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 2707 transitions. [2020-09-25 13:33:15,092 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 2707 transitions. Word has length 154 [2020-09-25 13:33:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:33:15,093 INFO L479 AbstractCegarLoop]: Abstraction has 2295 states and 2707 transitions. [2020-09-25 13:33:15,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:33:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 2707 transitions. [2020-09-25 13:33:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:33:15,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:33:15,101 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 13:33:15,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:33:15,102 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:33:15,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:33:15,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1465769009, now seen corresponding path program 1 times [2020-09-25 13:33:15,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:33:15,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245849374] [2020-09-25 13:33:15,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:33:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:15,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:15,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:15,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:16,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:17,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:17,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2649 [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 13:33:17,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:33:17,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:33:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:17,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:17,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:17,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:33:17,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:33:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:33:17,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:17,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:33:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:33:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:33:17,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:33:17,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:33:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:17,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:17,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:33:17,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:33:17,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:33:17,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:17,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:33:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:33:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:33:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:33:17,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 13:33:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:33:17,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:17,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:33:18,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:33:18,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:33:18,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:33:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 13:33:18,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:33:18,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:33:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:33:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:33:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:33:18,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:33:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:33:18,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245849374] [2020-09-25 13:33:18,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:33:18,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:33:18,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611964485] [2020-09-25 13:33:18,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:33:18,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:33:18,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:33:18,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:33:18,098 INFO L87 Difference]: Start difference. First operand 2295 states and 2707 transitions. Second operand 8 states. [2020-09-25 13:33:21,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:33:21,291 INFO L93 Difference]: Finished difference Result 5093 states and 6203 transitions. [2020-09-25 13:33:21,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:33:21,292 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-25 13:33:21,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:33:21,305 INFO L225 Difference]: With dead ends: 5093 [2020-09-25 13:33:21,306 INFO L226 Difference]: Without dead ends: 2820 [2020-09-25 13:33:21,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:33:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2020-09-25 13:33:21,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2335. [2020-09-25 13:33:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2020-09-25 13:33:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 2793 transitions. [2020-09-25 13:33:21,381 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 2793 transitions. Word has length 161 [2020-09-25 13:33:21,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:33:21,381 INFO L479 AbstractCegarLoop]: Abstraction has 2335 states and 2793 transitions. [2020-09-25 13:33:21,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:33:21,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 2793 transitions. [2020-09-25 13:33:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 13:33:21,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:33:21,390 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:33:21,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:33:21,391 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:33:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:33:21,391 INFO L82 PathProgramCache]: Analyzing trace with hash -523474928, now seen corresponding path program 1 times [2020-09-25 13:33:21,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:33:21,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269248975] [2020-09-25 13:33:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:33:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:33:21,434 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:33:21,434 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:33:21,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:33:21,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:33:21 BoogieIcfgContainer [2020-09-25 13:33:21,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:33:21,479 INFO L168 Benchmark]: Toolchain (without parser) took 46491.87 ms. Allocated memory was 138.9 MB in the beginning and 699.9 MB in the end (delta: 561.0 MB). Free memory was 100.9 MB in the beginning and 310.3 MB in the end (delta: -209.4 MB). Peak memory consumption was 351.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:33:21,480 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:33:21,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.60 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 170.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:33:21,482 INFO L168 Benchmark]: Boogie Preprocessor took 117.61 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:33:21,483 INFO L168 Benchmark]: RCFGBuilder took 1488.16 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.8 MB in the beginning and 161.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:33:21,484 INFO L168 Benchmark]: TraceAbstraction took 44010.20 ms. Allocated memory was 234.9 MB in the beginning and 699.9 MB in the end (delta: 465.0 MB). Free memory was 161.1 MB in the beginning and 310.3 MB in the end (delta: -149.2 MB). Peak memory consumption was 315.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:33:21,487 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 865.60 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 170.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.61 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1488.16 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.8 MB in the beginning and 161.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44010.20 ms. Allocated memory was 234.9 MB in the beginning and 699.9 MB in the end (delta: 465.0 MB). Free memory was 161.1 MB in the beginning and 310.3 MB in the end (delta: -149.2 MB). Peak memory consumption was 315.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 427]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int e= 5; [L9] int d= 4; [L10] int f= 6; [L11] int c= 3; [L14] int u = 21; [L15] int v = 22; [L16] int w = 23; [L17] int x = 24; [L18] int y = 25; [L19] int z = 26; [L22] int a25 = 0; [L23] int a11 = 0; [L24] int a28 = 7; [L25] int a19 = 1; [L26] int a21 = 1; [L27] int a17 = 8; [L603] int output = -1; [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND TRUE (((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1)) [L166] a25 = 1 [L167] a28 = 9 [L168] return 26; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND TRUE (((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8)) [L31] a28 = 9 [L32] a11 = 1 [L33] a25 = 1 [L34] return -1; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L169] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L175] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L179] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L185] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L187] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L189] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L191] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L194] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L198] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L202] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L212] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L215] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L218] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L223] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L225] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L232] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L234] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L237] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L248] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L253] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L259] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L261] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L276] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L280] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L283] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L286] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L291] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L293] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L297] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L309] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L314] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L328] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L331] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L337] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L349] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L354] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L361] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L368] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L375] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L378] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L380] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L389] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L394] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L398] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L402] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L404] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L407] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L409] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L414] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L417] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L420] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L423] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L426] COND TRUE ((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8)) [L427] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 527 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.8s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2019 SDtfs, 4143 SDslu, 1577 SDs, 0 SdLazy, 7171 SolverSat, 795 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2335occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 905 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 28.8s InterpolantComputationTime, 999 NumberOfCodeBlocks, 999 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 821 ConstructedInterpolants, 0 QuantifiedInterpolants, 374648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 106/128 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 incorrect! Received shutdown request...