/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:48:02,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:48:02,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:48:02,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:48:02,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:48:02,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:48:02,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:48:02,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:48:02,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:48:02,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:48:02,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:48:02,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:48:02,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:48:02,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:48:02,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:48:02,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:48:02,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:48:02,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:48:02,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:48:02,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:48:02,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:48:02,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:48:02,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:48:02,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:48:02,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:48:02,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:48:02,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:48:02,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:48:02,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:48:02,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:48:02,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:48:02,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:48:02,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:48:02,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:48:02,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:48:02,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:48:02,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:48:02,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:48:02,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:48:02,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:48:02,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:48:02,332 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 06:48:02,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:48:02,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:48:02,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:48:02,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:48:02,385 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:48:02,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:48:02,385 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:48:02,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:48:02,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:48:02,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:48:02,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:48:02,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:48:02,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:48:02,388 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:48:02,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:48:02,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:48:02,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:48:02,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:48:02,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:48:02,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:48:02,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:48:02,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:48:02,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:48:02,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:48:02,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:48:02,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:48:02,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:48:02,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:48:02,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:48:02,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:48:02,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:48:02,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:48:02,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:48:02,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:48:02,921 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:48:02,922 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label42.c [2020-09-25 06:48:03,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5516acb36/a69366d7976d4a539d90aeece8a04b5c/FLAG69d4effce [2020-09-25 06:48:03,735 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:48:03,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label42.c [2020-09-25 06:48:03,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5516acb36/a69366d7976d4a539d90aeece8a04b5c/FLAG69d4effce [2020-09-25 06:48:03,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5516acb36/a69366d7976d4a539d90aeece8a04b5c [2020-09-25 06:48:03,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:48:03,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:48:03,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:48:03,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:48:03,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:48:03,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:03,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697b2ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03, skipping insertion in model container [2020-09-25 06:48:03,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:03,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:48:04,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:48:04,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:48:04,523 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:48:04,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:48:04,763 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:48:04,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04 WrapperNode [2020-09-25 06:48:04,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:48:04,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:48:04,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:48:04,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:48:04,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (1/1) ... [2020-09-25 06:48:04,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (1/1) ... [2020-09-25 06:48:04,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (1/1) ... [2020-09-25 06:48:04,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (1/1) ... [2020-09-25 06:48:04,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (1/1) ... [2020-09-25 06:48:04,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (1/1) ... [2020-09-25 06:48:04,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (1/1) ... [2020-09-25 06:48:04,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:48:04,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:48:04,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:48:04,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:48:04,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (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 06:48:05,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:48:05,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:48:05,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 06:48:05,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:48:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 06:48:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:48:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:48:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:48:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:48:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:48:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:48:06,540 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:48:06,541 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:48:06,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:48:06 BoogieIcfgContainer [2020-09-25 06:48:06,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:48:06,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:48:06,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:48:06,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:48:06,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:48:03" (1/3) ... [2020-09-25 06:48:06,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6639092e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:48:06, skipping insertion in model container [2020-09-25 06:48:06,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:04" (2/3) ... [2020-09-25 06:48:06,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6639092e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:48:06, skipping insertion in model container [2020-09-25 06:48:06,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:48:06" (3/3) ... [2020-09-25 06:48:06,565 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label42.c [2020-09-25 06:48:06,577 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:48:06,593 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:48:06,613 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:48:06,645 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:48:06,646 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:48:06,646 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:48:06,646 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:48:06,646 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:48:06,646 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:48:06,646 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:48:06,647 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:48:06,677 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 06:48:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 06:48:06,686 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:06,688 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] [2020-09-25 06:48:06,688 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:06,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:06,697 INFO L82 PathProgramCache]: Analyzing trace with hash 969247631, now seen corresponding path program 1 times [2020-09-25 06:48:06,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:06,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390287377] [2020-09-25 06:48:06,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:06,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:07,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:07,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:07,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 06:48:07,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:48:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-09-25 06:48:07,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:07,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:48:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:48:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:48:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:48:07,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:07,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:07,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:07,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:07,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:07,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 06:48:07,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:07,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:48:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:07,741 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 06:48:07,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390287377] [2020-09-25 06:48:07,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:48:07,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:48:07,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144903350] [2020-09-25 06:48:07,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:48:07,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:07,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:48:07,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:48:07,784 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 06:48:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:10,019 INFO L93 Difference]: Finished difference Result 1104 states and 1521 transitions. [2020-09-25 06:48:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:48:10,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-25 06:48:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:10,046 INFO L225 Difference]: With dead ends: 1104 [2020-09-25 06:48:10,047 INFO L226 Difference]: Without dead ends: 578 [2020-09-25 06:48:10,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:48:10,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-25 06:48:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 544. [2020-09-25 06:48:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-25 06:48:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 655 transitions. [2020-09-25 06:48:10,177 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 655 transitions. Word has length 36 [2020-09-25 06:48:10,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:10,178 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 655 transitions. [2020-09-25 06:48:10,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:48:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 655 transitions. [2020-09-25 06:48:10,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-25 06:48:10,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:10,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:10,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:48:10,187 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:10,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:10,188 INFO L82 PathProgramCache]: Analyzing trace with hash -2117330465, now seen corresponding path program 1 times [2020-09-25 06:48:10,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:10,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285138959] [2020-09-25 06:48:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:10,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:11,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:15,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 06:48:15,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:48:15,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:48:15,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:15,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:15,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:15,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 06:48:15,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 06:48:15,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:15,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:15,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:48:15,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:15,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:15,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:15,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:15,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:48:15,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:15,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 06:48:15,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:15,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 06:48:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:48:15,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285138959] [2020-09-25 06:48:15,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:15,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:48:15,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599294446] [2020-09-25 06:48:15,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:48:15,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:15,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:48:15,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:48:15,468 INFO L87 Difference]: Start difference. First operand 544 states and 655 transitions. Second operand 5 states. [2020-09-25 06:48:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:17,306 INFO L93 Difference]: Finished difference Result 1224 states and 1530 transitions. [2020-09-25 06:48:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:48:17,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-09-25 06:48:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:17,312 INFO L225 Difference]: With dead ends: 1224 [2020-09-25 06:48:17,312 INFO L226 Difference]: Without dead ends: 695 [2020-09-25 06:48:17,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:48:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2020-09-25 06:48:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2020-09-25 06:48:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-09-25 06:48:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 850 transitions. [2020-09-25 06:48:17,353 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 850 transitions. Word has length 115 [2020-09-25 06:48:17,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:17,354 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 850 transitions. [2020-09-25 06:48:17,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:48:17,354 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 850 transitions. [2020-09-25 06:48:17,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 06:48:17,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:17,359 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:17,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:48:17,359 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:17,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:17,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1359994051, now seen corresponding path program 1 times [2020-09-25 06:48:17,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:17,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312698109] [2020-09-25 06:48:17,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:17,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:17,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:17,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 06:48:17,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:17,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 06:48:17,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:17,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-25 06:48:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:48:17,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:17,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:17,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:17,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:48:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:17,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:17,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:17,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:17,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:17,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:48:17,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:17,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 06:48:17,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:17,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:48:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:17,985 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:48:17,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312698109] [2020-09-25 06:48:17,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:17,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:48:17,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088319861] [2020-09-25 06:48:17,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:48:17,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:17,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:48:17,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:48:17,991 INFO L87 Difference]: Start difference. First operand 695 states and 850 transitions. Second operand 5 states. [2020-09-25 06:48:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:19,997 INFO L93 Difference]: Finished difference Result 1549 states and 1977 transitions. [2020-09-25 06:48:19,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:48:19,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-09-25 06:48:20,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:20,012 INFO L225 Difference]: With dead ends: 1549 [2020-09-25 06:48:20,012 INFO L226 Difference]: Without dead ends: 1019 [2020-09-25 06:48:20,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:48:20,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2020-09-25 06:48:20,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 999. [2020-09-25 06:48:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2020-09-25 06:48:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1279 transitions. [2020-09-25 06:48:20,071 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1279 transitions. Word has length 125 [2020-09-25 06:48:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:20,073 INFO L479 AbstractCegarLoop]: Abstraction has 999 states and 1279 transitions. [2020-09-25 06:48:20,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:48:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1279 transitions. [2020-09-25 06:48:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-25 06:48:20,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:20,089 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:20,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:48:20,090 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:20,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:20,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1154324421, now seen corresponding path program 1 times [2020-09-25 06:48:20,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:20,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158207029] [2020-09-25 06:48:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:20,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:20,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:20,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:20,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:21,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 06:48:21,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:48:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1704 [2020-09-25 06:48:21,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:21,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:48:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 06:48:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 06:48:21,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:21,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:21,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:21,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:21,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:48:21,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:21,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:21,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:48:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:21,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:21,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:22,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:22,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 06:48:22,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 06:48:22,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:22,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 06:48:22,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:48:22,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158207029] [2020-09-25 06:48:22,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:48:22,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:48:22,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744949964] [2020-09-25 06:48:22,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:48:22,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:22,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:48:22,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:48:22,278 INFO L87 Difference]: Start difference. First operand 999 states and 1279 transitions. Second operand 8 states. [2020-09-25 06:48:24,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:24,807 INFO L93 Difference]: Finished difference Result 2189 states and 2891 transitions. [2020-09-25 06:48:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:48:24,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 127 [2020-09-25 06:48:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:24,818 INFO L225 Difference]: With dead ends: 2189 [2020-09-25 06:48:24,818 INFO L226 Difference]: Without dead ends: 1355 [2020-09-25 06:48:24,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:48:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2020-09-25 06:48:24,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1319. [2020-09-25 06:48:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-09-25 06:48:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1582 transitions. [2020-09-25 06:48:24,881 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1582 transitions. Word has length 127 [2020-09-25 06:48:24,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:24,882 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 1582 transitions. [2020-09-25 06:48:24,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:48:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1582 transitions. [2020-09-25 06:48:24,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 06:48:24,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:24,889 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 06:48:24,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:48:24,889 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:24,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:24,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1613370199, now seen corresponding path program 1 times [2020-09-25 06:48:24,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:24,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656088524] [2020-09-25 06:48:24,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:25,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:25,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:25,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:26,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:26,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:26,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:27,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:27,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:29,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:29,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 06:48:29,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:48:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:48:29,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:29,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:48:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 06:48:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 06:48:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:30,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:30,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:30,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:30,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:30,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:30,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:48:30,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:30,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:30,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:30,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:30,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:30,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:30,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:30,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:30,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:30,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:48:30,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 06:48:30,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:30,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:48:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:48:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:30,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 06:48:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:30,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:30,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:30,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 06:48:30,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 06:48:30,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:30,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:30,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 06:48:30,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:48:30,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656088524] [2020-09-25 06:48:30,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:30,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:48:30,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138183293] [2020-09-25 06:48:30,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:48:30,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:30,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:48:30,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:48:30,570 INFO L87 Difference]: Start difference. First operand 1319 states and 1582 transitions. Second operand 8 states. [2020-09-25 06:48:34,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:34,224 INFO L93 Difference]: Finished difference Result 4275 states and 5475 transitions. [2020-09-25 06:48:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:48:34,225 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2020-09-25 06:48:34,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:34,260 INFO L225 Difference]: With dead ends: 4275 [2020-09-25 06:48:34,260 INFO L226 Difference]: Without dead ends: 3121 [2020-09-25 06:48:34,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:48:34,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2020-09-25 06:48:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2753. [2020-09-25 06:48:34,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2753 states. [2020-09-25 06:48:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 3506 transitions. [2020-09-25 06:48:34,409 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 3506 transitions. Word has length 216 [2020-09-25 06:48:34,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:34,410 INFO L479 AbstractCegarLoop]: Abstraction has 2753 states and 3506 transitions. [2020-09-25 06:48:34,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:48:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 3506 transitions. [2020-09-25 06:48:34,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-25 06:48:34,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:34,416 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:34,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:48:34,417 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:34,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:34,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1776525167, now seen corresponding path program 1 times [2020-09-25 06:48:34,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:34,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431083758] [2020-09-25 06:48:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:48:34,467 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:48:34,467 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:48:34,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:48:34,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:48:34 BoogieIcfgContainer [2020-09-25 06:48:34,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:48:34,535 INFO L168 Benchmark]: Toolchain (without parser) took 30605.76 ms. Allocated memory was 138.9 MB in the beginning and 529.0 MB in the end (delta: 390.1 MB). Free memory was 101.0 MB in the beginning and 91.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 399.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:48:34,537 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:48:34,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 829.05 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 170.3 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:48:34,545 INFO L168 Benchmark]: Boogie Preprocessor took 132.99 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 165.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:48:34,546 INFO L168 Benchmark]: RCFGBuilder took 1652.88 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 165.4 MB in the beginning and 164.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:48:34,547 INFO L168 Benchmark]: TraceAbstraction took 27978.09 ms. Allocated memory was 235.4 MB in the beginning and 529.0 MB in the end (delta: 293.6 MB). Free memory was 162.7 MB in the beginning and 91.6 MB in the end (delta: 71.1 MB). Peak memory consumption was 364.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:48:34,559 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 829.05 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 170.3 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.99 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 165.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1652.88 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 165.4 MB in the beginning and 164.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27978.09 ms. Allocated memory was 235.4 MB in the beginning and 529.0 MB in the end (delta: 293.6 MB). Free memory was 162.7 MB in the beginning and 91.6 MB in the end (delta: 71.1 MB). Peak memory consumption was 364.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 55]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int inputC = 3; [L8] int inputD = 4; [L9] int inputE = 5; [L10] int inputF = 6; [L11] int inputB = 2; [L14] int a1 = 23; [L15] int a19 = 9; [L16] int a10 = 0; [L17] int a12 = 0; [L18] int a4 = 14; [L579] int output = -1; [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND TRUE ((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0))) [L211] a1 = (((a1 + -15535) - 211896) / 5) [L212] a10 = 2 [L214] return 22; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L215] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L220] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L225] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L231] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L236] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L239] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L244] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L249] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L254] COND FALSE !((((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0))) [L260] COND FALSE !((((a4==14) && ((((((a10==2) && ((38 < a1) && (218 >= a1)) ) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3))) && (input == 2)) && (a19==9))) && (a12==0))) [L265] COND FALSE !((((a10==1) && (((a12==0) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a4==14))) && (a19==9))) [L271] COND FALSE !(((((((input == 5) && (a4==14)) && 218 < a1 ) && (a10==4)) && (a19==9)) && (a12==0))) [L277] COND FALSE !(((a19==10) && ((a4==14) && ((a12==0) && ((input == 4) && ((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0))) || ((a10==1) && a1 <= -13 ))))))) [L283] COND FALSE !((((a12==0) && ((((a19==9) && (input == 4)) && 218 < a1 ) && (a10==1))) && (a4==14))) [L286] COND FALSE !(((a10==1) && ((a4==14) && ((((a12==0) && (input == 2)) && (a19==9)) && 218 < a1 )))) [L291] COND FALSE !((((a4==14) && (((input == 4) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3)))) && (a19==9))) && (a12==0))) [L296] COND FALSE !(((((a12==0) && ((((a10==0) && 218 < a1 ) || ((a10==1) && a1 <= -13 )) && (input == 2))) && (a19==9)) && (a4==14))) [L301] COND FALSE !((((a4==14) && ((a12==0) && ((input == 3) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))))) && (a19==9))) [L306] COND FALSE !((((((a10==1) && ((a12==0) && (input == 6))) && (a19==10)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14))) [L312] COND FALSE !(((a19==9) && (((a10==4) && ( 218 < a1 && ((a4==14) && (input == 6)))) && (a12==0)))) [L317] COND FALSE !((((a10==0) && ((a12==0) && (((input == 4) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)))) && (a4==14))) [L320] COND FALSE !(((a19==9) && ((((a4==14) && ((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a12==0)) && (a10==2)))) [L323] COND FALSE !((((((a12==0) && ((input == 4) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a19==9)) && (a4==14)) && (a10==3))) [L326] COND FALSE !((((a4==14) && (((a12==0) && ( 218 < a1 && (input == 6))) && (a19==10))) && (a10==1))) [L329] COND FALSE !(((((((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a10==0)) && (a4==14)) && (a12==0))) [L335] COND FALSE !((((((( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 )) && (input == 3)) && (a4==14)) && (a12==0)) && (a19==9))) [L340] COND FALSE !(((a12==0) && ((a19==9) && (((input == 6) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))) && (a4==14))))) [L345] COND FALSE !((((a10==3) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5))) && (a12==0))) && (a4==14))) [L351] COND FALSE !((((a12==0) && ((a10==1) && ( 218 < a1 && ((a19==9) && (input == 6))))) && (a4==14))) [L354] COND FALSE !(((a10==0) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 3)) && (a19==10)) && (a4==14))))) [L357] COND FALSE !((((a10==4) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a4==14)) && (a19==9))) && (a12==0))) [L360] COND FALSE !(((a4==14) && ((a10==1) && ((a19==9) && ((a12==0) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4))))))) [L365] COND FALSE !(((a4==14) && ((a19==9) && (((( a1 <= -13 && (a10==3)) || (( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 ))) && (input == 3)) && (a12==0))))) [L370] COND FALSE !((((((a4==14) && ((input == 6) && (a10==1))) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a19==10))) [L375] COND FALSE !(((a4==14) && (((a12==0) && ( 218 < a1 && ((a19==9) && (input == 3)))) && (a10==4)))) [L378] COND FALSE !((((a4==14) && ((a12==0) && ((((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 )) && (input == 4)))) && (a19==9))) [L383] COND FALSE !((((a12==0) && (((a10==4) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3))) && (a4==14))) && (a19==9))) [L388] COND FALSE !(((a19==9) && ((a4==14) && (((input == 5) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ((a10==3) && a1 <= -13 ))) && (a12==0))))) [L393] COND FALSE !(((a12==0) && (((a19==9) && ((((a10==0) && 218 < a1 ) || ( a1 <= -13 && (a10==1))) && (input == 5))) && (a4==14)))) [L398] COND FALSE !(( 218 < a1 && ((((a12==0) && ((a19==9) && (input == 2))) && (a10==4)) && (a4==14)))) [L403] COND FALSE !((((a12==0) && ((a19==9) && ((((a10==3) && a1 <= -13 ) || (((a10==2) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==2)))) && (input == 6)))) && (a4==14))) [L408] COND TRUE ((a19==9) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 5)) && (a4==14)) && (a10==2)))) [L409] a1 = ((((a1 % 299890)+ 300108) * 1) * 1) [L410] a10 = 0 [L411] a19 = 8 [L413] return -1; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND TRUE (((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8)) [L55] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 456 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.8s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1034 SDtfs, 4594 SDslu, 1521 SDs, 0 SdLazy, 6307 SolverSat, 993 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2753occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 458 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.3s InterpolantComputationTime, 856 NumberOfCodeBlocks, 856 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 614 ConstructedInterpolants, 0 QuantifiedInterpolants, 198584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 181/185 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...