/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/Problem07_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 05:55:54,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 05:55:54,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 05:55:54,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 05:55:54,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 05:55:54,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 05:55:54,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 05:55:54,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 05:55:54,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 05:55:54,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 05:55:54,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 05:55:54,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 05:55:54,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 05:55:54,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 05:55:54,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 05:55:54,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 05:55:54,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 05:55:54,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 05:55:55,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 05:55:55,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 05:55:55,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 05:55:55,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 05:55:55,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 05:55:55,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 05:55:55,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 05:55:55,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 05:55:55,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 05:55:55,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 05:55:55,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 05:55:55,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 05:55:55,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 05:55:55,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 05:55:55,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 05:55:55,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 05:55:55,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 05:55:55,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 05:55:55,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 05:55:55,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 05:55:55,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 05:55:55,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 05:55:55,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 05:55:55,034 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 [2020-10-29 05:55:55,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 05:55:55,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 05:55:55,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 05:55:55,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 05:55:55,062 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 05:55:55,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 05:55:55,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 05:55:55,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 05:55:55,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 05:55:55,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 05:55:55,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 05:55:55,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 05:55:55,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 05:55:55,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 05:55:55,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 05:55:55,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 05:55:55,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 05:55:55,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 05:55:55,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 05:55:55,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 05:55:55,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 05:55:55,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 05:55:55,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 05:55:55,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 05:55:55,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 05:55:55,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 05:55:55,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 05:55:55,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 05:55:55,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 05:55:55,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 05:55:55,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 05:55:55,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 05:55:55,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 05:55:55,509 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 05:55:55,509 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 05:55:55,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label22.c [2020-10-29 05:55:55,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306377a77/6800012fe39f4c4fa741e2c8f82eb2cf/FLAG2cc8b04c5 [2020-10-29 05:55:59,157 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 05:55:59,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem07_label22.c [2020-10-29 05:55:59,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306377a77/6800012fe39f4c4fa741e2c8f82eb2cf/FLAG2cc8b04c5 [2020-10-29 05:55:59,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306377a77/6800012fe39f4c4fa741e2c8f82eb2cf [2020-10-29 05:55:59,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 05:55:59,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 05:55:59,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 05:55:59,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 05:55:59,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 05:55:59,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:55:59" (1/1) ... [2020-10-29 05:55:59,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799b3595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:59, skipping insertion in model container [2020-10-29 05:55:59,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:55:59" (1/1) ... [2020-10-29 05:55:59,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 05:56:00,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 05:56:11,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 05:56:11,420 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 05:56:18,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 05:56:19,299 INFO L208 MainTranslator]: Completed translation [2020-10-29 05:56:19,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19 WrapperNode [2020-10-29 05:56:19,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 05:56:19,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 05:56:19,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 05:56:19,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 05:56:19,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (1/1) ... [2020-10-29 05:56:19,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (1/1) ... [2020-10-29 05:56:20,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (1/1) ... [2020-10-29 05:56:20,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (1/1) ... [2020-10-29 05:56:22,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (1/1) ... [2020-10-29 05:56:23,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (1/1) ... [2020-10-29 05:56:23,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (1/1) ... [2020-10-29 05:56:24,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 05:56:24,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 05:56:24,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 05:56:24,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 05:56:24,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (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 [2020-10-29 05:56:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 05:56:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 05:56:24,418 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 05:56:24,418 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 05:56:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 05:56:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 05:56:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-29 05:56:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-29 05:56:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-29 05:56:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-29 05:56:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-29 05:56:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2020-10-29 05:56:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2020-10-29 05:56:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2020-10-29 05:56:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2020-10-29 05:56:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2020-10-29 05:56:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2020-10-29 05:56:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2020-10-29 05:56:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2020-10-29 05:56:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2020-10-29 05:56:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2020-10-29 05:56:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2020-10-29 05:56:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2020-10-29 05:56:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2020-10-29 05:56:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2020-10-29 05:56:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2020-10-29 05:56:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2020-10-29 05:56:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2020-10-29 05:56:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2020-10-29 05:56:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2020-10-29 05:56:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2020-10-29 05:56:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2020-10-29 05:56:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2020-10-29 05:56:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2020-10-29 05:56:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2020-10-29 05:56:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2020-10-29 05:56:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2020-10-29 05:56:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2020-10-29 05:56:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2020-10-29 05:56:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2020-10-29 05:56:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2020-10-29 05:56:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2020-10-29 05:56:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2020-10-29 05:56:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2020-10-29 05:56:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2020-10-29 05:56:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2020-10-29 05:56:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2020-10-29 05:56:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2020-10-29 05:56:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2020-10-29 05:56:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 05:56:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 05:56:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 05:56:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 05:56:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-29 05:56:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-29 05:56:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-29 05:56:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-29 05:56:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-29 05:56:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2020-10-29 05:56:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2020-10-29 05:56:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2020-10-29 05:56:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2020-10-29 05:56:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2020-10-29 05:56:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2020-10-29 05:56:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2020-10-29 05:56:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2020-10-29 05:56:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2020-10-29 05:56:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2020-10-29 05:56:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2020-10-29 05:56:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2020-10-29 05:56:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2020-10-29 05:56:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2020-10-29 05:56:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2020-10-29 05:56:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2020-10-29 05:56:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2020-10-29 05:56:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2020-10-29 05:56:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2020-10-29 05:56:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2020-10-29 05:56:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2020-10-29 05:56:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2020-10-29 05:56:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2020-10-29 05:56:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2020-10-29 05:56:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2020-10-29 05:56:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2020-10-29 05:56:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2020-10-29 05:56:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2020-10-29 05:56:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2020-10-29 05:56:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2020-10-29 05:56:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2020-10-29 05:56:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2020-10-29 05:56:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2020-10-29 05:56:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2020-10-29 05:56:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2020-10-29 05:56:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2020-10-29 05:56:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2020-10-29 05:56:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2020-10-29 05:56:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 05:56:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 05:56:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 05:56:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 05:56:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 05:56:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 05:56:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 05:56:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 05:56:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 05:56:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 05:56:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 05:56:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 05:56:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 05:57:25,399 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 05:57:25,399 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 05:57:25,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:57:25 BoogieIcfgContainer [2020-10-29 05:57:25,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 05:57:25,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 05:57:25,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 05:57:25,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 05:57:25,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:55:59" (1/3) ... [2020-10-29 05:57:25,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439449cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:57:25, skipping insertion in model container [2020-10-29 05:57:25,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:19" (2/3) ... [2020-10-29 05:57:25,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439449cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:57:25, skipping insertion in model container [2020-10-29 05:57:25,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:57:25" (3/3) ... [2020-10-29 05:57:25,430 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label22.c [2020-10-29 05:57:25,442 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 05:57:25,451 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 05:57:25,466 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 05:57:25,536 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 05:57:25,536 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 05:57:25,536 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 05:57:25,536 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 05:57:25,537 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 05:57:25,537 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 05:57:25,537 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 05:57:25,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 05:57:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states. [2020-10-29 05:57:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10233 [2020-10-29 05:57:26,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:57:26,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 05:57:26,636 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:57:26,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:57:26,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1892412438, now seen corresponding path program 1 times [2020-10-29 05:57:26,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:57:26,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302382867] [2020-10-29 05:57:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:57:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:57:34,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:57:39,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:57:39,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10332 [2020-10-29 05:57:39,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:57:39,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7344 [2020-10-29 05:57:39,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:57:39,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:57:39,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 96 [2020-10-29 05:57:39,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 05:57:39,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10323 [2020-10-29 05:57:39,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 05:58:04,210 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 05:58:04,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:58:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:58:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:58:04,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:58:04,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:58:04,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:58:04,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 05:58:04,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:58:04,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:58:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:58:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:58:04,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 05:58:04,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 05:59:19,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 05:59:19,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302382867] [2020-10-29 05:59:19,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 05:59:19,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 05:59:19,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617051453] [2020-10-29 05:59:20,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 05:59:20,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:59:20,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 05:59:20,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 05:59:20,041 INFO L87 Difference]: Start difference. First operand 10450 states. Second operand 4 states. [2020-10-29 05:59:20,232 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102