/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_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:03:16,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:03:16,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:03:16,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:03:16,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:03:16,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:03:16,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:03:16,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:03:16,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:03:16,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:03:16,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:03:16,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:03:16,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:03:16,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:03:16,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:03:16,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:03:16,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:03:16,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:03:16,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:03:16,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:03:16,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:03:16,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:03:16,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:03:16,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:03:16,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:03:16,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:03:16,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:03:16,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:03:16,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:03:16,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:03:16,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:03:16,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:03:16,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:03:16,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:03:16,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:03:16,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:03:16,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:03:16,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:03:16,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:03:16,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:03:16,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:03:16,503 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 06:03:16,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:03:16,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:03:16,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:03:16,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:03:16,531 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:03:16,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:03:16,532 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:03:16,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:03:16,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:03:16,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:03:16,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:03:16,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:03:16,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:03:16,533 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:03:16,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:03:16,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:03:16,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:03:16,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:03:16,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:03:16,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:03:16,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:03:16,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:03:16,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:03:16,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:03:16,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:03:16,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:03:16,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:03:16,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:03:16,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:03:16,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:03:16,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:03:16,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:03:16,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:03:17,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:03:17,001 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:03:17,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label50.c [2020-10-29 06:03:17,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e850837cc/73c5314bf179435c9eae68c6a68efaab/FLAGa19a5fb2e [2020-10-29 06:03:20,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:03:20,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem07_label50.c [2020-10-29 06:03:20,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e850837cc/73c5314bf179435c9eae68c6a68efaab/FLAGa19a5fb2e [2020-10-29 06:03:20,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e850837cc/73c5314bf179435c9eae68c6a68efaab [2020-10-29 06:03:20,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:03:20,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:03:20,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:03:20,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:03:20,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:03:20,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:03:20" (1/1) ... [2020-10-29 06:03:20,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20629e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:20, skipping insertion in model container [2020-10-29 06:03:20,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:03:20" (1/1) ... [2020-10-29 06:03:20,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:03:21,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:03:32,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:03:32,325 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:03:38,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:03:39,968 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:03:39,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39 WrapperNode [2020-10-29 06:03:39,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:03:39,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:03:39,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:03:39,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:03:39,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (1/1) ... [2020-10-29 06:03:39,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (1/1) ... [2020-10-29 06:03:41,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (1/1) ... [2020-10-29 06:03:41,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (1/1) ... [2020-10-29 06:03:43,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (1/1) ... [2020-10-29 06:03:43,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (1/1) ... [2020-10-29 06:03:44,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (1/1) ... [2020-10-29 06:03:44,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:03:44,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:03:44,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:03:44,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:03:44,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (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 06:03:44,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:03:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:03:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:03:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:03:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 06:03:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 06:03:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-29 06:03:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-29 06:03:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-29 06:03:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-29 06:03:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-29 06:03:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2020-10-29 06:03:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2020-10-29 06:03:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2020-10-29 06:03:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2020-10-29 06:03:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2020-10-29 06:03:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2020-10-29 06:03:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2020-10-29 06:03:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2020-10-29 06:03:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2020-10-29 06:03:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2020-10-29 06:03:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2020-10-29 06:03:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2020-10-29 06:03:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2020-10-29 06:03:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2020-10-29 06:03:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2020-10-29 06:03:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2020-10-29 06:03:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2020-10-29 06:03:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2020-10-29 06:03:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2020-10-29 06:03:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2020-10-29 06:03:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2020-10-29 06:03:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2020-10-29 06:03:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2020-10-29 06:03:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2020-10-29 06:03:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2020-10-29 06:03:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2020-10-29 06:03:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2020-10-29 06:03:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2020-10-29 06:03:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2020-10-29 06:03:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2020-10-29 06:03:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2020-10-29 06:03:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-29 06:03:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-29 06:03:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2020-10-29 06:03:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2020-10-29 06:03:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2020-10-29 06:03:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2020-10-29 06:03:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2020-10-29 06:03:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2020-10-29 06:03:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2020-10-29 06:03:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2020-10-29 06:03:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2020-10-29 06:03:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2020-10-29 06:03:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2020-10-29 06:03:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2020-10-29 06:03:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2020-10-29 06:03:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2020-10-29 06:03:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2020-10-29 06:03:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2020-10-29 06:03:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2020-10-29 06:03:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2020-10-29 06:03:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2020-10-29 06:03:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2020-10-29 06:03:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2020-10-29 06:03:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2020-10-29 06:03:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2020-10-29 06:03:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2020-10-29 06:03:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2020-10-29 06:03:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2020-10-29 06:03:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:03:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:03:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:03:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:03:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:03:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:03:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:03:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:03:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:03:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:03:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:04:45,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:04:45,718 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:04:45,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:04:45 BoogieIcfgContainer [2020-10-29 06:04:45,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:04:45,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:04:45,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:04:45,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:04:45,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:03:20" (1/3) ... [2020-10-29 06:04:45,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb8160d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:04:45, skipping insertion in model container [2020-10-29 06:04:45,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:03:39" (2/3) ... [2020-10-29 06:04:45,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb8160d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:04:45, skipping insertion in model container [2020-10-29 06:04:45,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:04:45" (3/3) ... [2020-10-29 06:04:45,748 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label50.c [2020-10-29 06:04:45,761 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:04:45,774 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:04:45,789 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:04:45,861 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:04:45,861 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:04:45,861 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:04:45,861 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:04:45,861 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:04:45,861 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:04:45,862 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:04:45,862 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:04:46,012 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states. [2020-10-29 06:04:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10236 [2020-10-29 06:04:47,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:04:47,079 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, 1, 1, 1] [2020-10-29 06:04:47,080 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:04:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:04:47,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1918871528, now seen corresponding path program 1 times [2020-10-29 06:04:47,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:04:47,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675692762] [2020-10-29 06:04:47,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:04:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:04:55,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:05:00,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:05:00,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10335 [2020-10-29 06:05:00,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:05:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7814 [2020-10-29 06:05:00,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:05:00,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:05:00,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 96 [2020-10-29 06:05:00,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:05:00,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10326 [2020-10-29 06:05:00,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 06:05:24,562 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 06:05:24,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:05:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:05:24,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:05:24,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:05:24,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:05:24,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:05:24,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 06:05:24,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:05:24,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:05:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:05:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:05:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:05:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:06:38,625 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 06:06:38,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675692762] [2020-10-29 06:06:38,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:06:38,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:06:38,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565183720] [2020-10-29 06:06:38,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:06:38,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:06:38,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:06:38,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:06:38,675 INFO L87 Difference]: Start difference. First operand 10450 states. Second operand 4 states. [2020-10-29 06:06:38,862 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 102