/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:23:35,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:23:35,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:23:35,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:23:35,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:23:35,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:23:35,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:23:35,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:23:35,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:23:35,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:23:35,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:23:35,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:23:35,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:23:35,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:23:35,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:23:35,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:23:35,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:23:35,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:23:35,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:23:35,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:23:35,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:23:35,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:23:35,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:23:35,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:23:35,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:23:35,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:23:35,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:23:35,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:23:35,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:23:35,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:23:35,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:23:35,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:23:35,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:23:35,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:23:35,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:23:35,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:23:35,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:23:35,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:23:35,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:23:35,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:23:35,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:23:35,452 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 12:23:35,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:23:35,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:23:35,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:23:35,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:23:35,481 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:23:35,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:23:35,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:23:35,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:23:35,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:23:35,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:23:35,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:23:35,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:23:35,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:23:35,483 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:23:35,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:23:35,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:23:35,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:23:35,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:23:35,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:23:35,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:23:35,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:23:35,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:23:35,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:23:35,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:23:35,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:23:35,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:23:35,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:23:35,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:23:35,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:23:35,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:23:35,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:23:35,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:23:35,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:23:35,988 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:23:35,988 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:23:35,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label13.c [2020-09-25 12:23:36,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b993b28b4/e214dfa80c564d5c90f57a29d2c6f5c6/FLAGb6a5e28c5 [2020-09-25 12:23:36,792 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:23:36,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label13.c [2020-09-25 12:23:36,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b993b28b4/e214dfa80c564d5c90f57a29d2c6f5c6/FLAGb6a5e28c5 [2020-09-25 12:23:37,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b993b28b4/e214dfa80c564d5c90f57a29d2c6f5c6 [2020-09-25 12:23:37,017 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:23:37,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:23:37,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:23:37,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:23:37,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:23:37,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5783693b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37, skipping insertion in model container [2020-09-25 12:23:37,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:23:37,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:23:37,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:23:37,605 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:23:37,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:23:37,856 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:23:37,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37 WrapperNode [2020-09-25 12:23:37,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:23:37,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:23:37,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:23:37,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:23:37,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (1/1) ... [2020-09-25 12:23:37,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:23:37,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:23:37,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:23:37,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:23:37,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (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 12:23:38,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:23:38,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:23:38,061 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 12:23:38,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:23:38,061 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 12:23:38,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:23:38,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:23:38,062 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 12:23:38,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:23:38,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:23:38,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:23:39,384 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:23:39,384 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 12:23:39,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:23:39 BoogieIcfgContainer [2020-09-25 12:23:39,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:23:39,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:23:39,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:23:39,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:23:39,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:23:37" (1/3) ... [2020-09-25 12:23:39,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786d3a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:23:39, skipping insertion in model container [2020-09-25 12:23:39,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:23:37" (2/3) ... [2020-09-25 12:23:39,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786d3a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:23:39, skipping insertion in model container [2020-09-25 12:23:39,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:23:39" (3/3) ... [2020-09-25 12:23:39,404 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label13.c [2020-09-25 12:23:39,417 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:23:39,428 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:23:39,452 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:23:39,487 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:23:39,488 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:23:39,488 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:23:39,488 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:23:39,488 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:23:39,488 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:23:39,489 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:23:39,489 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:23:39,522 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 12:23:39,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 12:23:39,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:23:39,543 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, 1] [2020-09-25 12:23:39,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:23:39,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:23:39,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1743137911, now seen corresponding path program 1 times [2020-09-25 12:23:39,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:23:39,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106040551] [2020-09-25 12:23:39,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:23:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:39,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:41,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:43,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:43,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:43,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:43,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:44,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:44,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 12:23:44,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:23:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 12:23:44,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:44,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:23:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 12:23:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 12:23:44,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:23:45,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:23:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:45,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:45,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:45,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:23:45,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:23:45,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 12:23:45,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:45,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:45,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:23:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:23:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:23:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:23:45,091 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 12:23:45,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106040551] [2020-09-25 12:23:45,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:23:45,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:23:45,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165557302] [2020-09-25 12:23:45,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:23:45,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:23:45,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:23:45,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:23:45,127 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 12:23:47,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:23:47,520 INFO L93 Difference]: Finished difference Result 1396 states and 1850 transitions. [2020-09-25 12:23:47,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:23:47,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-09-25 12:23:47,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:23:47,551 INFO L225 Difference]: With dead ends: 1396 [2020-09-25 12:23:47,551 INFO L226 Difference]: Without dead ends: 788 [2020-09-25 12:23:47,564 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 12:23:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-09-25 12:23:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 665. [2020-09-25 12:23:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-09-25 12:23:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 813 transitions. [2020-09-25 12:23:47,677 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 813 transitions. Word has length 112 [2020-09-25 12:23:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:23:47,678 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 813 transitions. [2020-09-25 12:23:47,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:23:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 813 transitions. [2020-09-25 12:23:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-25 12:23:47,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:23:47,687 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, 1] [2020-09-25 12:23:47,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:23:47,688 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:23:47,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:23:47,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1416088099, now seen corresponding path program 1 times [2020-09-25 12:23:47,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:23:47,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546669959] [2020-09-25 12:23:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:23:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:47,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:47,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:48,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:48,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:49,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:51,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:52,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:52,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 12:23:52,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:23:52,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 12:23:52,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:52,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:52,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:23:52,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 12:23:52,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 12:23:52,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 12:23:52,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:23:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:52,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:52,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:23:52,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:23:52,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:23:52,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:52,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:23:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:23:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:23:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:23:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:23:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:52,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:52,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:52,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:23:52,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:23:52,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:23:52,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:52,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:23:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:23:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 12:23:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:23:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:23:53,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546669959] [2020-09-25 12:23:53,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:23:53,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 12:23:53,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149538549] [2020-09-25 12:23:53,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:23:53,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:23:53,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:23:53,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:23:53,008 INFO L87 Difference]: Start difference. First operand 665 states and 813 transitions. Second operand 5 states. [2020-09-25 12:23:54,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:23:54,784 INFO L93 Difference]: Finished difference Result 1622 states and 2084 transitions. [2020-09-25 12:23:54,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:23:54,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-09-25 12:23:54,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:23:54,793 INFO L225 Difference]: With dead ends: 1622 [2020-09-25 12:23:54,793 INFO L226 Difference]: Without dead ends: 979 [2020-09-25 12:23:54,797 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 12:23:54,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2020-09-25 12:23:54,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 967. [2020-09-25 12:23:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-09-25 12:23:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1216 transitions. [2020-09-25 12:23:54,840 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1216 transitions. Word has length 130 [2020-09-25 12:23:54,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:23:54,841 INFO L479 AbstractCegarLoop]: Abstraction has 967 states and 1216 transitions. [2020-09-25 12:23:54,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:23:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1216 transitions. [2020-09-25 12:23:54,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:23:54,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:23:54,848 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:23:54,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:23:54,849 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:23:54,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:23:54,849 INFO L82 PathProgramCache]: Analyzing trace with hash -564964590, now seen corresponding path program 1 times [2020-09-25 12:23:54,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:23:54,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255446468] [2020-09-25 12:23:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:23:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:54,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:54,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:55,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:55,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:55,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:58,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:59,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:59,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:59,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 12:23:59,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:23:59,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 12:23:59,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:59,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:59,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:23:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 12:23:59,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 12:23:59,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:24:00,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:24:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:00,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:00,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:24:00,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:00,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:24:00,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:00,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:24:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:24:00,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:00,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:24:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:00,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:00,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:00,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:00,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 12:24:00,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:24:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 12:24:00,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:00,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:24:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:24:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 12:24:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 12:24:00,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255446468] [2020-09-25 12:24:00,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:24:00,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:24:00,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983256196] [2020-09-25 12:24:00,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:24:00,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:24:00,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:24:00,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:24:00,439 INFO L87 Difference]: Start difference. First operand 967 states and 1216 transitions. Second operand 7 states. [2020-09-25 12:24:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:24:03,676 INFO L93 Difference]: Finished difference Result 3375 states and 4531 transitions. [2020-09-25 12:24:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:24:03,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-09-25 12:24:03,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:24:03,708 INFO L225 Difference]: With dead ends: 3375 [2020-09-25 12:24:03,709 INFO L226 Difference]: Without dead ends: 2430 [2020-09-25 12:24:03,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:24:03,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2020-09-25 12:24:03,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2329. [2020-09-25 12:24:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2329 states. [2020-09-25 12:24:03,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3001 transitions. [2020-09-25 12:24:03,831 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3001 transitions. Word has length 156 [2020-09-25 12:24:03,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:24:03,832 INFO L479 AbstractCegarLoop]: Abstraction has 2329 states and 3001 transitions. [2020-09-25 12:24:03,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:24:03,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3001 transitions. [2020-09-25 12:24:03,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 12:24:03,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:24:03,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:24:03,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:24:03,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:24:03,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:24:03,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1235046948, now seen corresponding path program 1 times [2020-09-25 12:24:03,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:24:03,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256994003] [2020-09-25 12:24:03,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:24:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:03,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:03,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:04,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:05,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:05,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:08,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:08,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:08,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 12:24:08,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 12:24:08,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 12:24:08,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:08,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:24:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 12:24:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 12:24:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:24:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:09,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:09,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:09,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:24:09,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:24:09,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:09,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:24:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:24:09,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:09,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:24:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:09,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:09,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:09,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:24:09,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:09,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:24:09,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:09,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:24:09,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:09,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 12:24:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:09,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:24:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:09,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:09,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:09,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:09,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:24:09,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:24:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-25 12:24:09,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:09,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:24:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:24:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 12:24:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:24:09,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256994003] [2020-09-25 12:24:09,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:24:09,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:24:09,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438486004] [2020-09-25 12:24:09,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:24:09,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:24:09,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:24:09,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:24:09,424 INFO L87 Difference]: Start difference. First operand 2329 states and 3001 transitions. Second operand 6 states. [2020-09-25 12:24:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:24:11,716 INFO L93 Difference]: Finished difference Result 5834 states and 7876 transitions. [2020-09-25 12:24:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:24:11,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 12:24:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:24:11,745 INFO L225 Difference]: With dead ends: 5834 [2020-09-25 12:24:11,745 INFO L226 Difference]: Without dead ends: 3527 [2020-09-25 12:24:11,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:24:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2020-09-25 12:24:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 2786. [2020-09-25 12:24:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2786 states. [2020-09-25 12:24:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3644 transitions. [2020-09-25 12:24:11,897 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3644 transitions. Word has length 168 [2020-09-25 12:24:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:24:11,898 INFO L479 AbstractCegarLoop]: Abstraction has 2786 states and 3644 transitions. [2020-09-25 12:24:11,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:24:11,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3644 transitions. [2020-09-25 12:24:11,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 12:24:11,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:24:11,915 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 12:24:11,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:24:11,915 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:24:11,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:24:11,916 INFO L82 PathProgramCache]: Analyzing trace with hash 2142409343, now seen corresponding path program 1 times [2020-09-25 12:24:11,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:24:11,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071026453] [2020-09-25 12:24:11,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:24:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:11,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:12,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:12,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:13,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:15,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:15,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-25 12:24:15,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:24:15,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3954 [2020-09-25 12:24:15,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:15,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:24:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 12:24:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-25 12:24:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:16,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:24:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:16,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:16,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:16,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:24:16,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:16,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:24:16,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:16,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:24:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:24:16,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:16,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:24:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:16,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:16,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:16,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:24:16,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 12:24:16,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:16,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:24:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:24:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:16,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-25 12:24:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:16,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:16,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:16,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 12:24:16,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:24:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 12:24:16,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:16,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:24:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:24:16,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 12:24:16,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 56 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:24:16,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071026453] [2020-09-25 12:24:16,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:24:16,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:24:16,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931418071] [2020-09-25 12:24:16,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:24:16,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:24:16,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:24:16,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:24:16,342 INFO L87 Difference]: Start difference. First operand 2786 states and 3644 transitions. Second operand 7 states. [2020-09-25 12:24:18,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:24:18,958 INFO L93 Difference]: Finished difference Result 7180 states and 9724 transitions. [2020-09-25 12:24:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:24:18,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-25 12:24:18,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:24:18,983 INFO L225 Difference]: With dead ends: 7180 [2020-09-25 12:24:18,983 INFO L226 Difference]: Without dead ends: 4416 [2020-09-25 12:24:18,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:24:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4416 states. [2020-09-25 12:24:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4416 to 4196. [2020-09-25 12:24:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4196 states. [2020-09-25 12:24:19,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 5286 transitions. [2020-09-25 12:24:19,121 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 5286 transitions. Word has length 190 [2020-09-25 12:24:19,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:24:19,122 INFO L479 AbstractCegarLoop]: Abstraction has 4196 states and 5286 transitions. [2020-09-25 12:24:19,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:24:19,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 5286 transitions. [2020-09-25 12:24:19,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 12:24:19,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:24:19,138 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 12:24:19,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:24:19,138 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:24:19,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:24:19,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1617174429, now seen corresponding path program 1 times [2020-09-25 12:24:19,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:24:19,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235624090] [2020-09-25 12:24:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:24:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:19,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:19,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:20,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:20,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-25 12:24:20,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:24:20,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1106 [2020-09-25 12:24:20,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:20,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:24:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:24:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 12:24:20,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:24:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:20,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:20,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:20,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:24:20,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:24:20,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:20,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:24:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:24:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:20,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:24:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:20,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:20,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:20,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:24:20,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:20,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:24:20,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:20,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:24:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:20,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:24:20,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:20,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 12:24:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:20,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:20,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 12:24:20,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:24:20,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 12:24:20,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:20,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:24:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:24:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:24:20,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:20,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:24:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:24:20,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:24:20,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:24:20,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 12:24:20,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:24:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 12:24:20,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:24:20,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:24:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:24:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:24:20,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 12:24:20,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:24:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 80 proven. 28 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 12:24:20,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235624090] [2020-09-25 12:24:20,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:24:20,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:24:20,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871028905] [2020-09-25 12:24:20,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:24:20,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:24:20,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:24:20,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:24:20,797 INFO L87 Difference]: Start difference. First operand 4196 states and 5286 transitions. Second operand 7 states. [2020-09-25 12:24:23,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:24:23,793 INFO L93 Difference]: Finished difference Result 10688 states and 13900 transitions. [2020-09-25 12:24:23,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:24:23,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-09-25 12:24:23,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:24:23,827 INFO L225 Difference]: With dead ends: 10688 [2020-09-25 12:24:23,828 INFO L226 Difference]: Without dead ends: 6514 [2020-09-25 12:24:23,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:24:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2020-09-25 12:24:24,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 6316. [2020-09-25 12:24:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6316 states. [2020-09-25 12:24:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6316 states to 6316 states and 7858 transitions. [2020-09-25 12:24:24,028 INFO L78 Accepts]: Start accepts. Automaton has 6316 states and 7858 transitions. Word has length 208 [2020-09-25 12:24:24,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:24:24,029 INFO L479 AbstractCegarLoop]: Abstraction has 6316 states and 7858 transitions. [2020-09-25 12:24:24,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:24:24,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6316 states and 7858 transitions. [2020-09-25 12:24:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 12:24:24,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:24:24,059 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:24:24,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:24:24,059 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:24:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:24:24,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1161023568, now seen corresponding path program 1 times [2020-09-25 12:24:24,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:24:24,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710224560] [2020-09-25 12:24:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:24:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:24:24,125 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:24:24,125 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:24:24,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:24:24,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:24:24 BoogieIcfgContainer [2020-09-25 12:24:24,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:24:24,201 INFO L168 Benchmark]: Toolchain (without parser) took 47180.70 ms. Allocated memory was 137.9 MB in the beginning and 723.0 MB in the end (delta: 585.1 MB). Free memory was 99.8 MB in the beginning and 221.1 MB in the end (delta: -121.3 MB). Peak memory consumption was 463.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:24:24,203 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 12:24:24,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.71 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.2 MB in the beginning and 169.5 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:24:24,210 INFO L168 Benchmark]: Boogie Preprocessor took 126.36 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:24:24,211 INFO L168 Benchmark]: RCFGBuilder took 1409.95 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 164.5 MB in the beginning and 160.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:24:24,211 INFO L168 Benchmark]: TraceAbstraction took 44801.79 ms. Allocated memory was 232.3 MB in the beginning and 723.0 MB in the end (delta: 490.7 MB). Free memory was 158.9 MB in the beginning and 221.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 428.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:24:24,224 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 827.71 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.2 MB in the beginning and 169.5 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.36 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1409.95 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 164.5 MB in the beginning and 160.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44801.79 ms. Allocated memory was 232.3 MB in the beginning and 723.0 MB in the end (delta: 490.7 MB). Free memory was 158.9 MB in the beginning and 221.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 428.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 430]: 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 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 TRUE ((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1))) [L369] a11 = 1 [L370] a19 = 0 [L371] a25 = 1 [L372] a17 = 7 [L373] a28 = 9 [L374] 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 FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L429] COND TRUE ((((((a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7)) [L430] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 527 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.6s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2044 SDtfs, 6300 SDslu, 1862 SDs, 0 SdLazy, 7192 SolverSat, 803 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6316occurred 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: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 1395 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 27.3s InterpolantComputationTime, 1203 NumberOfCodeBlocks, 1203 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 958 ConstructedInterpolants, 0 QuantifiedInterpolants, 512156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 215/323 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...