/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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 07:54:33,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:54:33,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:54:33,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:54:33,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:54:33,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:54:33,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:54:33,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:54:33,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:54:33,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:54:33,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:54:33,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:54:33,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:54:33,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:54:33,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:54:33,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:54:33,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:54:33,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:54:33,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:54:33,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:54:33,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:54:33,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:54:33,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:54:33,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:54:33,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:54:33,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:54:33,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:54:33,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:54:33,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:54:33,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:54:33,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:54:33,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:54:33,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:54:33,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:54:33,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:54:33,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:54:33,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:54:33,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:54:33,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:54:33,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:54:33,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:54:33,806 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 07:54:33,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:54:33,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:54:33,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:54:33,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:54:33,836 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:54:33,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:54:33,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:54:33,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:54:33,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:54:33,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:54:33,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:54:33,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:54:33,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:54:33,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:54:33,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:54:33,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:54:33,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:54:33,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:54:33,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:54:33,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:54:33,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:54:33,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:54:33,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:54:33,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:54:33,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:54:33,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:54:33,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:54:33,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:54:33,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:54:33,847 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:54:34,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:54:34,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:54:34,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:54:34,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:54:34,364 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:54:34,365 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 07:54:34,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1b09c81f/6fb2b77dc2e8473aada49d2af23b7b8b/FLAG08b121329 [2020-09-25 07:54:35,135 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:54:35,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 07:54:35,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1b09c81f/6fb2b77dc2e8473aada49d2af23b7b8b/FLAG08b121329 [2020-09-25 07:54:35,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1b09c81f/6fb2b77dc2e8473aada49d2af23b7b8b [2020-09-25 07:54:35,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:54:35,381 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:54:35,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:54:35,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:54:35,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:54:35,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:54:35" (1/1) ... [2020-09-25 07:54:35,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3225ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:35, skipping insertion in model container [2020-09-25 07:54:35,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:54:35" (1/1) ... [2020-09-25 07:54:35,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:54:35,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:54:36,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:54:36,027 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:54:36,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:54:36,183 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:54:36,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36 WrapperNode [2020-09-25 07:54:36,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:54:36,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:54:36,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:54:36,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:54:36,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (1/1) ... [2020-09-25 07:54:36,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (1/1) ... [2020-09-25 07:54:36,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (1/1) ... [2020-09-25 07:54:36,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (1/1) ... [2020-09-25 07:54:36,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (1/1) ... [2020-09-25 07:54:36,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (1/1) ... [2020-09-25 07:54:36,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (1/1) ... [2020-09-25 07:54:36,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:54:36,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:54:36,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:54:36,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:54:36,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (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 07:54:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:54:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:54:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 07:54:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:54:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 07:54:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:54:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:54:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:54:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:54:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:54:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:54:37,781 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:54:37,781 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:54:37,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:54:37 BoogieIcfgContainer [2020-09-25 07:54:37,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:54:37,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:54:37,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:54:37,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:54:37,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:54:35" (1/3) ... [2020-09-25 07:54:37,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336c4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:54:37, skipping insertion in model container [2020-09-25 07:54:37,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:54:36" (2/3) ... [2020-09-25 07:54:37,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336c4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:54:37, skipping insertion in model container [2020-09-25 07:54:37,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:54:37" (3/3) ... [2020-09-25 07:54:37,801 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-09-25 07:54:37,813 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:54:37,824 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:54:37,850 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:54:37,897 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:54:37,898 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:54:37,899 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:54:37,899 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:54:37,899 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:54:37,899 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:54:37,899 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:54:37,899 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:54:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 07:54:37,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 07:54:37,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:37,985 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 07:54:37,985 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:37,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:37,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1883432242, now seen corresponding path program 1 times [2020-09-25 07:54:38,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:38,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47007104] [2020-09-25 07:54:38,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:38,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:38,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:39,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:39,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:42,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:42,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:42,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:42,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 07:54:42,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:54:42,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4495 [2020-09-25 07:54:42,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:42,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:54:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 07:54:42,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 07:54:42,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:54:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:43,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:43,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:43,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:43,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 07:54:43,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:43,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:54:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:54:43,208 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 07:54:43,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47007104] [2020-09-25 07:54:43,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:54:43,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:54:43,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887521441] [2020-09-25 07:54:43,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:54:43,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:43,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:54:43,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:54:43,253 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 07:54:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:54:45,807 INFO L93 Difference]: Finished difference Result 1396 states and 1850 transitions. [2020-09-25 07:54:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:54:45,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-25 07:54:45,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:54:45,847 INFO L225 Difference]: With dead ends: 1396 [2020-09-25 07:54:45,847 INFO L226 Difference]: Without dead ends: 788 [2020-09-25 07:54:45,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 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 07:54:45,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-09-25 07:54:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 665. [2020-09-25 07:54:45,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-09-25 07:54:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 813 transitions. [2020-09-25 07:54:45,965 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 813 transitions. Word has length 111 [2020-09-25 07:54:45,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:54:45,966 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 813 transitions. [2020-09-25 07:54:45,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:54:45,966 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 813 transitions. [2020-09-25 07:54:45,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-25 07:54:45,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:45,973 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:54:45,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:54:45,973 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:45,974 INFO L82 PathProgramCache]: Analyzing trace with hash -184227746, now seen corresponding path program 1 times [2020-09-25 07:54:45,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:45,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105879515] [2020-09-25 07:54:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:46,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:46,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:46,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 07:54:46,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-09-25 07:54:46,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:46,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:54:46,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:54:46,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:54:46,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:46,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:46,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:46,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:46,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:46,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:54:46,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:46,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:54:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:46,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:46,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:46,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:46,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:54:46,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:46,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 07:54:46,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:46,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:46,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:46,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:54:46,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:54:46,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:46,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:54:46,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105879515] [2020-09-25 07:54:46,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:54:46,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:54:46,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594612452] [2020-09-25 07:54:46,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:54:46,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:46,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:54:46,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:54:46,789 INFO L87 Difference]: Start difference. First operand 665 states and 813 transitions. Second operand 7 states. [2020-09-25 07:54:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:54:48,876 INFO L93 Difference]: Finished difference Result 1716 states and 2196 transitions. [2020-09-25 07:54:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:54:48,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-09-25 07:54:48,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:54:48,886 INFO L225 Difference]: With dead ends: 1716 [2020-09-25 07:54:48,887 INFO L226 Difference]: Without dead ends: 1073 [2020-09-25 07:54:48,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:54:48,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-09-25 07:54:48,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 995. [2020-09-25 07:54:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-25 07:54:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1183 transitions. [2020-09-25 07:54:48,987 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1183 transitions. Word has length 129 [2020-09-25 07:54:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:54:48,990 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1183 transitions. [2020-09-25 07:54:48,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:54:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1183 transitions. [2020-09-25 07:54:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 07:54:48,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:48,998 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 07:54:48,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:54:48,998 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:48,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:48,999 INFO L82 PathProgramCache]: Analyzing trace with hash 980037392, now seen corresponding path program 1 times [2020-09-25 07:54:48,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:48,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677521970] [2020-09-25 07:54:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:49,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:49,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:49,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:50,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:50,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:50,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:52,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:53,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:54,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:54,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 07:54:54,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:54:54,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 07:54:54,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:54,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 07:54:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 07:54:54,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:54:54,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:54,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:54,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:54,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:54,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:54,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:54:54,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:54,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:54,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:54,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:54,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:54,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:54,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:54,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:54,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:54,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:54:54,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:54,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:54:54,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:54,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:54,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:54,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:54,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:54:54,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:54,307 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 07:54:54,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677521970] [2020-09-25 07:54:54,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:54:54,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 07:54:54,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372197693] [2020-09-25 07:54:54,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:54:54,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:54,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:54:54,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:54:54,311 INFO L87 Difference]: Start difference. First operand 995 states and 1183 transitions. Second operand 5 states. [2020-09-25 07:54:56,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:54:56,122 INFO L93 Difference]: Finished difference Result 2587 states and 3204 transitions. [2020-09-25 07:54:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:54:56,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-09-25 07:54:56,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:54:56,132 INFO L225 Difference]: With dead ends: 2587 [2020-09-25 07:54:56,132 INFO L226 Difference]: Without dead ends: 1614 [2020-09-25 07:54:56,136 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 07:54:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2020-09-25 07:54:56,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1602. [2020-09-25 07:54:56,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1602 states. [2020-09-25 07:54:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 1957 transitions. [2020-09-25 07:54:56,217 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 1957 transitions. Word has length 133 [2020-09-25 07:54:56,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:54:56,221 INFO L479 AbstractCegarLoop]: Abstraction has 1602 states and 1957 transitions. [2020-09-25 07:54:56,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:54:56,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 1957 transitions. [2020-09-25 07:54:56,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-25 07:54:56,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:56,231 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:54:56,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:54:56,231 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:56,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1044088891, now seen corresponding path program 1 times [2020-09-25 07:54:56,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:56,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137009910] [2020-09-25 07:54:56,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:56,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:56,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:56,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 07:54:56,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:56,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 07:54:56,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:56,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 07:54:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:54:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:56,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:56,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:56,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:56,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:56,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:56,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:54:56,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:56,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:56,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:56,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:56,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:56,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:56,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:56,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:56,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:56,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:54:56,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:56,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:54:56,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:56,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:56,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:54:56,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:56,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 07:54:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:56,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:56,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:56,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:54:56,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:54:56,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:56,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:54:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:54:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:54:56,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137009910] [2020-09-25 07:54:56,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:54:56,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:54:56,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805233645] [2020-09-25 07:54:56,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:54:56,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:56,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:54:56,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:54:56,885 INFO L87 Difference]: Start difference. First operand 1602 states and 1957 transitions. Second operand 8 states. [2020-09-25 07:55:00,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:55:00,004 INFO L93 Difference]: Finished difference Result 3858 states and 4948 transitions. [2020-09-25 07:55:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 07:55:00,008 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-09-25 07:55:00,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:55:00,020 INFO L225 Difference]: With dead ends: 3858 [2020-09-25 07:55:00,021 INFO L226 Difference]: Without dead ends: 2278 [2020-09-25 07:55:00,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:55:00,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2020-09-25 07:55:00,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2233. [2020-09-25 07:55:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2233 states. [2020-09-25 07:55:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 2745 transitions. [2020-09-25 07:55:00,097 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 2745 transitions. Word has length 146 [2020-09-25 07:55:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:55:00,098 INFO L479 AbstractCegarLoop]: Abstraction has 2233 states and 2745 transitions. [2020-09-25 07:55:00,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:55:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 2745 transitions. [2020-09-25 07:55:00,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 07:55:00,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:55:00,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:00,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:55:00,107 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:55:00,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:55:00,107 INFO L82 PathProgramCache]: Analyzing trace with hash -584227059, now seen corresponding path program 1 times [2020-09-25 07:55:00,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:55:00,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111057486] [2020-09-25 07:55:00,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:55:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:00,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:00,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:01,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:02,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:02,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-25 07:55:02,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:55:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2443 [2020-09-25 07:55:02,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:02,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:55:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 07:55:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 07:55:02,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:02,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:55:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:02,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:02,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:02,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:55:02,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:55:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:55:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:02,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:55:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:55:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:55:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:55:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:02,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:02,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:02,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:55:02,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:55:02,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:55:02,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:02,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:02,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:55:02,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:55:02,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:55:02,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:02,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:55:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:02,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:02,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:02,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:02,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:55:02,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:55:02,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 07:55:02,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:02,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:02,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:55:02,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:55:02,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:55:02,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 07:55:02,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111057486] [2020-09-25 07:55:02,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:55:02,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:55:02,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313587044] [2020-09-25 07:55:02,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:55:02,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:55:02,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:55:02,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:55:02,935 INFO L87 Difference]: Start difference. First operand 2233 states and 2745 transitions. Second operand 7 states. [2020-09-25 07:55:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:55:06,114 INFO L93 Difference]: Finished difference Result 7753 states and 10504 transitions. [2020-09-25 07:55:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:55:06,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-09-25 07:55:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:55:06,155 INFO L225 Difference]: With dead ends: 7753 [2020-09-25 07:55:06,155 INFO L226 Difference]: Without dead ends: 5542 [2020-09-25 07:55:06,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:55:06,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5542 states. [2020-09-25 07:55:06,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5542 to 4356. [2020-09-25 07:55:06,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4356 states. [2020-09-25 07:55:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 5554 transitions. [2020-09-25 07:55:06,328 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 5554 transitions. Word has length 158 [2020-09-25 07:55:06,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:55:06,328 INFO L479 AbstractCegarLoop]: Abstraction has 4356 states and 5554 transitions. [2020-09-25 07:55:06,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:55:06,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 5554 transitions. [2020-09-25 07:55:06,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:55:06,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:55:06,345 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 07:55:06,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:55:06,345 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:55:06,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:55:06,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1465769009, now seen corresponding path program 1 times [2020-09-25 07:55:06,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:55:06,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382036068] [2020-09-25 07:55:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:55:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:06,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:06,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:07,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:09,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:09,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:55:09,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:55:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3340 [2020-09-25 07:55:09,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:09,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:55:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 07:55:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 07:55:09,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:09,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:55:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:09,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:09,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:09,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:55:09,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:55:09,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:55:09,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:09,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:55:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:55:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:55:09,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:09,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:55:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:09,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:09,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:09,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:55:09,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:55:09,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:55:09,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:09,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:55:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:55:09,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:55:09,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:55:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:55:09,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:09,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:55:10,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:55:10,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:55:10,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:55:10,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 07:55:10,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:55:10,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:55:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:55:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:55:10,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:55:10,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:55:10,092 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 07:55:10,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382036068] [2020-09-25 07:55:10,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:55:10,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:55:10,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845316193] [2020-09-25 07:55:10,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:55:10,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:55:10,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:55:10,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:55:10,096 INFO L87 Difference]: Start difference. First operand 4356 states and 5554 transitions. Second operand 8 states. [2020-09-25 07:55:13,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:55:13,150 INFO L93 Difference]: Finished difference Result 10087 states and 13280 transitions. [2020-09-25 07:55:13,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:55:13,150 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-25 07:55:13,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:55:13,178 INFO L225 Difference]: With dead ends: 10087 [2020-09-25 07:55:13,178 INFO L226 Difference]: Without dead ends: 5763 [2020-09-25 07:55:13,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:55:13,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5763 states. [2020-09-25 07:55:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5763 to 5430. [2020-09-25 07:55:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5430 states. [2020-09-25 07:55:13,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5430 states to 5430 states and 6913 transitions. [2020-09-25 07:55:13,353 INFO L78 Accepts]: Start accepts. Automaton has 5430 states and 6913 transitions. Word has length 161 [2020-09-25 07:55:13,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:55:13,353 INFO L479 AbstractCegarLoop]: Abstraction has 5430 states and 6913 transitions. [2020-09-25 07:55:13,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:55:13,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5430 states and 6913 transitions. [2020-09-25 07:55:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 07:55:13,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:55:13,367 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 07:55:13,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:55:13,368 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:55:13,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:55:13,368 INFO L82 PathProgramCache]: Analyzing trace with hash -523474928, now seen corresponding path program 1 times [2020-09-25 07:55:13,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:55:13,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212904284] [2020-09-25 07:55:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:55:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:55:13,415 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:55:13,416 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:55:13,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:55:13,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:55:13 BoogieIcfgContainer [2020-09-25 07:55:13,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:55:13,482 INFO L168 Benchmark]: Toolchain (without parser) took 38103.83 ms. Allocated memory was 139.5 MB in the beginning and 588.3 MB in the end (delta: 448.8 MB). Free memory was 101.5 MB in the beginning and 85.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 465.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:55:13,483 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:55:13,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.81 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 171.2 MB in the end (delta: -70.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:55:13,491 INFO L168 Benchmark]: Boogie Preprocessor took 124.71 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:55:13,492 INFO L168 Benchmark]: RCFGBuilder took 1481.43 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 160.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:55:13,492 INFO L168 Benchmark]: TraceAbstraction took 35685.57 ms. Allocated memory was 237.0 MB in the beginning and 588.3 MB in the end (delta: 351.3 MB). Free memory was 159.2 MB in the beginning and 85.0 MB in the end (delta: 74.2 MB). Peak memory consumption was 425.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:55:13,505 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 801.81 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 171.2 MB in the end (delta: -70.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.71 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1481.43 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 160.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35685.57 ms. Allocated memory was 237.0 MB in the beginning and 588.3 MB in the end (delta: 351.3 MB). Free memory was 159.2 MB in the beginning and 85.0 MB in the end (delta: 74.2 MB). Peak memory consumption was 425.5 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: 35.5s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2021 SDtfs, 7130 SDslu, 2407 SDs, 0 SdLazy, 8162 SolverSat, 986 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5430occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 1777 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 832 ConstructedInterpolants, 0 QuantifiedInterpolants, 374653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 122/148 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...