/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:00:53,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:00:53,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:00:53,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:00:53,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:00:53,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:00:53,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:00:53,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:00:53,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:00:53,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:00:53,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:00:53,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:00:53,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:00:53,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:00:53,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:00:53,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:00:53,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:00:53,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:00:53,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:00:53,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:00:53,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:00:53,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:00:53,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:00:53,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:00:53,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:00:53,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:00:53,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:00:53,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:00:53,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:00:53,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:00:53,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:00:53,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:00:53,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:00:53,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:00:53,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:00:53,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:00:53,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:00:53,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:00:53,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:00:53,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:00:53,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:00:53,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 12:00:53,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:00:53,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:00:53,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:00:53,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:00:53,938 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:00:53,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:00:53,938 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:00:53,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:00:53,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:00:53,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:00:53,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:00:53,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:00:53,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:00:53,940 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:00:53,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:00:53,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:00:53,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:00:53,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:00:53,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:00:53,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:00:53,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:00:53,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:00:53,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:00:53,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:00:53,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:00:53,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:00:53,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:00:53,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:00:53,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:00:53,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:00:54,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:00:54,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:00:54,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:00:54,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:00:54,467 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:00:54,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label46.c [2020-10-28 12:00:54,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adebea869/378332470618458cbc5e4b317a95f36a/FLAG1acfa853d [2020-10-28 12:00:55,242 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:00:55,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label46.c [2020-10-28 12:00:55,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adebea869/378332470618458cbc5e4b317a95f36a/FLAG1acfa853d [2020-10-28 12:00:55,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adebea869/378332470618458cbc5e4b317a95f36a [2020-10-28 12:00:55,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:00:55,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:00:55,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:55,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:00:55,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:00:55,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:55" (1/1) ... [2020-10-28 12:00:55,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5345a0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:55, skipping insertion in model container [2020-10-28 12:00:55,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:55" (1/1) ... [2020-10-28 12:00:55,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:00:55,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:00:56,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:56,076 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:00:56,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:56,259 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:00:56,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56 WrapperNode [2020-10-28 12:00:56,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:56,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:00:56,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:00:56,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:00:56,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... [2020-10-28 12:00:56,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... [2020-10-28 12:00:56,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... [2020-10-28 12:00:56,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... [2020-10-28 12:00:56,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... [2020-10-28 12:00:56,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... [2020-10-28 12:00:56,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... [2020-10-28 12:00:56,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:00:56,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:00:56,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:00:56,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:00:56,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:00:56,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:00:56,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:00:56,552 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:00:56,553 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:00:56,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:00:56,554 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:00:56,554 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:00:56,554 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:00:56,555 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:00:56,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:00:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:00:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:00:56,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:00:56,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:00:56,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:00:56,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:00:56,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:00:56,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:00:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:00:58,021 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:00:58,021 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:00:58,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:58 BoogieIcfgContainer [2020-10-28 12:00:58,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:00:58,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:00:58,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:00:58,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:00:58,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:00:55" (1/3) ... [2020-10-28 12:00:58,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f7141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:58, skipping insertion in model container [2020-10-28 12:00:58,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:56" (2/3) ... [2020-10-28 12:00:58,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f7141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:58, skipping insertion in model container [2020-10-28 12:00:58,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:58" (3/3) ... [2020-10-28 12:00:58,034 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label46.c [2020-10-28 12:00:58,047 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:00:58,053 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:00:58,067 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:00:58,099 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:00:58,099 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:00:58,099 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:00:58,099 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:00:58,099 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:00:58,100 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:00:58,100 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:00:58,100 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:00:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 12:00:58,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-28 12:00:58,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:58,132 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] [2020-10-28 12:00:58,133 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:58,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:58,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1715318596, now seen corresponding path program 1 times [2020-10-28 12:00:58,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:58,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191128562] [2020-10-28 12:00:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:58,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:58,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:58,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-28 12:00:58,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:58,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-28 12:00:58,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:58,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 12:00:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:00:59,130 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:00:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:59,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:59,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:00:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:59,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:59,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191128562] [2020-10-28 12:00:59,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:59,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:00:59,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088367232] [2020-10-28 12:00:59,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:00:59,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:59,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:00:59,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:00:59,242 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 12:01:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:01,218 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-28 12:01:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:01,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-28 12:01:01,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:01,243 INFO L225 Difference]: With dead ends: 586 [2020-10-28 12:01:01,243 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 12:01:01,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:01,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 12:01:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-28 12:01:01,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-28 12:01:01,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-28 12:01:01,335 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 28 [2020-10-28 12:01:01,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:01,336 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-28 12:01:01,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:01:01,336 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-28 12:01:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 12:01:01,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:01,341 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] [2020-10-28 12:01:01,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:01:01,342 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:01,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:01,343 INFO L82 PathProgramCache]: Analyzing trace with hash -740326912, now seen corresponding path program 1 times [2020-10-28 12:01:01,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:01,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845583787] [2020-10-28 12:01:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:01,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:01,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:01:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 804 [2020-10-28 12:01:02,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:02,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:01:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 12:01:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:01:02,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:02,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:02,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:02,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:02,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:01:02,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:02,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:02,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:02,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:02,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:02,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:02,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:01:02,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:02,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 12:01:02,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:02,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:02,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:02,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:02,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:01:02,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:01:02,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845583787] [2020-10-28 12:01:02,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:02,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:02,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056313289] [2020-10-28 12:01:02,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:02,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:02,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:02,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:02,595 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-28 12:01:04,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:04,431 INFO L93 Difference]: Finished difference Result 741 states and 1023 transitions. [2020-10-28 12:01:04,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:04,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-28 12:01:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:04,443 INFO L225 Difference]: With dead ends: 741 [2020-10-28 12:01:04,444 INFO L226 Difference]: Without dead ends: 448 [2020-10-28 12:01:04,445 INFO L677 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 [2020-10-28 12:01:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-28 12:01:04,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 444. [2020-10-28 12:01:04,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-28 12:01:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 576 transitions. [2020-10-28 12:01:04,485 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 576 transitions. Word has length 98 [2020-10-28 12:01:04,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:04,486 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 576 transitions. [2020-10-28 12:01:04,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:04,487 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 576 transitions. [2020-10-28 12:01:04,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-28 12:01:04,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:04,489 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] [2020-10-28 12:01:04,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:01:04,490 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:04,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:04,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1290993536, now seen corresponding path program 1 times [2020-10-28 12:01:04,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:04,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587445279] [2020-10-28 12:01:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 12:01:04,543 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 12:01:04,543 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 12:01:04,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:01:04,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:01:04 BoogieIcfgContainer [2020-10-28 12:01:04,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:01:04,591 INFO L168 Benchmark]: Toolchain (without parser) took 9098.30 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 124.6 MB in the beginning and 117.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 86.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:04,592 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:01:04,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.79 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 130.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:04,594 INFO L168 Benchmark]: Boogie Preprocessor took 182.55 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 125.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:04,596 INFO L168 Benchmark]: RCFGBuilder took 1579.38 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 99.8 MB in the end (delta: 25.5 MB). Peak memory consumption was 77.6 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:04,597 INFO L168 Benchmark]: TraceAbstraction took 6561.10 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 99.3 MB in the beginning and 117.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:04,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 762.79 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 130.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 182.55 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 125.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1579.38 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 99.8 MB in the end (delta: 25.5 MB). Peak memory consumption was 77.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6561.10 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 99.3 MB in the beginning and 117.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int inputC = 3; [L10] int inputD = 4; [L11] int inputE = 5; [L12] int inputF = 6; [L13] int inputB = 2; [L16] int a1 = 23; [L17] int a19 = 9; [L18] int a10 = 0; [L19] int a12 = 0; [L20] int a4 = 14; [L581] int output = -1; [L584] COND TRUE 1 [L587] int input; [L588] input = __VERIFIER_nondet_int() [L589] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L592] CALL, EXPR calculate_output(input) [L23] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L26] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L29] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L32] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L35] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L38] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L41] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L44] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L47] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L50] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L53] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L56] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L59] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L62] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L65] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L68] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L71] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L74] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L77] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L80] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L83] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L86] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L89] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L92] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L95] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L98] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L101] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L104] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L107] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L110] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L113] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L116] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L119] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L122] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L125] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L128] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L131] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L134] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L137] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L140] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L143] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L146] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L149] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L152] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L155] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L158] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L161] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L164] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L167] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L170] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L173] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L176] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L179] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L182] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L185] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L188] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L191] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L194] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L197] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L200] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L203] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L207] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L212] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L217] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L222] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L227] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L233] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L238] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L241] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L246] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L251] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L256] COND TRUE (((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0)) [L257] a1 = (((a1 / 5) + 110755) + 220746) [L258] a10 = 1 [L259] a19 = 8 [L261] return -1; [L592] RET, EXPR calculate_output(input) [L592] output = calculate_output(input) [L584] COND TRUE 1 [L587] int input; [L588] input = __VERIFIER_nondet_int() [L589] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L592] CALL calculate_output(input) [L23] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L26] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L29] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L32] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L35] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L38] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L41] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L44] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L47] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L50] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L53] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L56] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L59] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L62] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L65] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L68] COND TRUE (((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8)) [L69] CALL reach_error() [L4] __assert_fail("0", "Problem10_label46.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 777 SDslu, 31 SDs, 0 SdLazy, 1312 SolverSat, 248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=444occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 24209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 19/20 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...