/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=SHALLOWEST --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-programs/Problem101_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:07:22,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:07:22,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:07:22,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:07:22,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:07:22,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:07:22,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:07:22,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:07:22,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:07:22,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:07:22,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:07:22,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:07:22,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:07:22,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:07:22,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:07:22,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:07:22,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:07:22,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:07:22,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:07:22,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:07:22,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:07:22,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:07:22,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:07:22,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:07:22,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:07:22,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:07:22,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:07:22,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:07:22,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:07:22,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:07:22,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:07:22,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:07:22,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:07:22,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:07:22,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:07:22,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:07:22,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:07:22,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:07:22,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:07:22,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:07:22,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:07:22,444 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 [2020-10-26 20:07:22,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:07:22,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:07:22,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:07:22,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:07:22,474 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:07:22,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:07:22,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:07:22,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:07:22,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:07:22,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:07:22,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:07:22,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:07:22,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:07:22,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:07:22,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:07:22,478 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:07:22,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:07:22,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:07:22,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:07:22,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:07:22,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:07:22,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:07:22,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:07:22,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:07:22,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:07:22,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:07:22,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:07:22,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:07:22,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:07:22,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:07:22,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:07:22,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:07:22,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:07:22,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:07:22,932 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:07:22,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label17.c [2020-10-26 20:07:23,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08f59378f/43f03fb8f76d49479602b3f44282067f/FLAG4b160bdef [2020-10-26 20:07:25,764 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:07:25,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-programs/Problem101_label17.c [2020-10-26 20:07:25,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08f59378f/43f03fb8f76d49479602b3f44282067f/FLAG4b160bdef [2020-10-26 20:07:26,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08f59378f/43f03fb8f76d49479602b3f44282067f [2020-10-26 20:07:26,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:07:26,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:07:26,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:07:26,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:07:26,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:07:26,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:07:26" (1/1) ... [2020-10-26 20:07:26,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301ec25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:26, skipping insertion in model container [2020-10-26 20:07:26,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:07:26" (1/1) ... [2020-10-26 20:07:26,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:07:27,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:07:37,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:07:37,898 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:07:44,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:07:45,485 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:07:45,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45 WrapperNode [2020-10-26 20:07:45,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:07:45,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:07:45,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:07:45,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:07:45,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (1/1) ... [2020-10-26 20:07:45,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (1/1) ... [2020-10-26 20:07:46,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (1/1) ... [2020-10-26 20:07:46,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (1/1) ... [2020-10-26 20:07:48,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (1/1) ... [2020-10-26 20:07:49,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (1/1) ... [2020-10-26 20:07:50,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (1/1) ... [2020-10-26 20:07:51,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:07:51,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:07:51,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:07:51,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:07:51,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (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 [2020-10-26 20:07:51,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:07:51,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:07:51,574 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:07:51,574 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:07:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-26 20:07:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-26 20:07:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-26 20:07:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-26 20:07:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-26 20:07:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-26 20:07:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-26 20:07:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2020-10-26 20:07:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2020-10-26 20:07:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2020-10-26 20:07:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2020-10-26 20:07:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2020-10-26 20:07:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2020-10-26 20:07:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2020-10-26 20:07:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2020-10-26 20:07:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2020-10-26 20:07:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2020-10-26 20:07:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2020-10-26 20:07:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2020-10-26 20:07:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2020-10-26 20:07:51,581 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2020-10-26 20:07:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2020-10-26 20:07:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2020-10-26 20:07:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2020-10-26 20:07:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2020-10-26 20:07:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2020-10-26 20:07:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2020-10-26 20:07:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2020-10-26 20:07:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2020-10-26 20:07:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2020-10-26 20:07:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2020-10-26 20:07:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:07:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:07:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-26 20:07:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-26 20:07:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-26 20:07:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-26 20:07:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-26 20:07:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-26 20:07:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-26 20:07:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2020-10-26 20:07:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2020-10-26 20:07:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2020-10-26 20:07:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2020-10-26 20:07:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2020-10-26 20:07:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2020-10-26 20:07:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2020-10-26 20:07:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2020-10-26 20:07:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2020-10-26 20:07:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2020-10-26 20:07:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2020-10-26 20:07:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2020-10-26 20:07:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2020-10-26 20:07:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2020-10-26 20:07:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2020-10-26 20:07:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2020-10-26 20:07:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2020-10-26 20:07:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2020-10-26 20:07:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2020-10-26 20:07:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2020-10-26 20:07:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2020-10-26 20:07:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2020-10-26 20:07:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2020-10-26 20:07:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2020-10-26 20:07:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2020-10-26 20:07:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2020-10-26 20:07:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2020-10-26 20:07:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2020-10-26 20:07:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2020-10-26 20:07:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2020-10-26 20:07:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2020-10-26 20:07:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2020-10-26 20:07:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2020-10-26 20:07:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2020-10-26 20:07:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2020-10-26 20:07:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2020-10-26 20:07:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:07:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:07:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:07:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:07:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:07:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:07:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:07:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:08:51,902 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:08:51,902 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:08:51,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:08:51 BoogieIcfgContainer [2020-10-26 20:08:51,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:08:51,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:08:51,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:08:51,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:08:51,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:07:26" (1/3) ... [2020-10-26 20:08:51,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8bc53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:08:51, skipping insertion in model container [2020-10-26 20:08:51,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:07:45" (2/3) ... [2020-10-26 20:08:51,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8bc53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:08:51, skipping insertion in model container [2020-10-26 20:08:51,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:08:51" (3/3) ... [2020-10-26 20:08:51,930 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem101_label17.c [2020-10-26 20:08:51,944 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:08:51,954 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:08:51,971 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:08:52,030 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:08:52,031 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:08:52,031 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:08:52,031 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:08:52,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:08:52,031 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:08:52,031 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:08:52,031 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:08:52,343 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states. [2020-10-26 20:08:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10191 [2020-10-26 20:08:53,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:08:53,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:08:53,353 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:08:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:08:53,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1612788098, now seen corresponding path program 1 times [2020-10-26 20:08:53,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:08:53,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864714282] [2020-10-26 20:08:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:08:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:09:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:09:04,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:09:04,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10290 [2020-10-26 20:09:04,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:09:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6907 [2020-10-26 20:09:04,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:09:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 96 [2020-10-26 20:09:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:09:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10281 [2020-10-26 20:09:04,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:09:26,741 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:09:26,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:09:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:09:26,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:09:26,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:09:26,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:09:26,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:09:26,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:09:26,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:09:26,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:09:26,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:09:26,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:09:26,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 20:10:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:10:47,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864714282] [2020-10-26 20:10:47,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:10:47,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:10:47,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401515325] [2020-10-26 20:10:47,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:10:47,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:10:47,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:10:47,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:10:47,447 INFO L87 Difference]: Start difference. First operand 10450 states. Second operand 4 states. [2020-10-26 20:10:47,650 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102