/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:16:16,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:16:16,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:16:16,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:16:16,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:16:16,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:16:16,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:16:16,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:16:16,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:16:16,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:16:16,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:16:16,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:16:16,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:16:16,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:16:16,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:16:16,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:16:16,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:16:16,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:16:16,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:16:16,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:16:16,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:16:16,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:16:16,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:16:16,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:16:16,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 02:16:16,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 02:16:16,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 02:16:16,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 02:16:16,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 02:16:16,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 02:16:16,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 02:16:16,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 02:16:16,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 02:16:16,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 02:16:16,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 02:16:16,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 02:16:16,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 02:16:16,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 02:16:16,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:16:16,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:16:16,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:16:16,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:16:16,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:16:16,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:16:16,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:16:16,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:16:16,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:16:16,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:16:16,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:16:16,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:16:16,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:16:16,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:16:16,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:16:16,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:16:16,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:16:16,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:16:16,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:16:16,242 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:16:16,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:16:16,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:16:16,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:16:16,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:16:16,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:16:16,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:16:16,243 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:16:16,243 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:16:16,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:16:16,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:16:16,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:16:16,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:16:16,790 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:16:16,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2021-02-22 02:16:16,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca063ed2e/cb590ecc1cde4a99ae008a9050248812/FLAGafe7864fb [2021-02-22 02:16:17,607 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:16:17,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2021-02-22 02:16:17,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca063ed2e/cb590ecc1cde4a99ae008a9050248812/FLAGafe7864fb [2021-02-22 02:16:17,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca063ed2e/cb590ecc1cde4a99ae008a9050248812 [2021-02-22 02:16:17,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:16:17,832 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:16:17,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:16:17,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:16:17,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:16:17,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:16:17" (1/1) ... [2021-02-22 02:16:17,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b182c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:17, skipping insertion in model container [2021-02-22 02:16:17,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:16:17" (1/1) ... [2021-02-22 02:16:17,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:16:17,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:16:18,149 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c[4997,5010] [2021-02-22 02:16:18,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:16:18,482 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:16:18,548 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c[4997,5010] [2021-02-22 02:16:18,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:16:18,765 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:16:18,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18 WrapperNode [2021-02-22 02:16:18,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:16:18,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:16:18,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:16:18,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:16:18,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... [2021-02-22 02:16:18,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... [2021-02-22 02:16:18,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... [2021-02-22 02:16:18,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... [2021-02-22 02:16:18,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... [2021-02-22 02:16:18,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... [2021-02-22 02:16:18,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... [2021-02-22 02:16:18,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:16:18,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:16:18,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:16:18,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:16:18,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-22 02:16:19,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:16:19,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:16:19,083 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:16:19,084 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:16:19,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:16:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:16:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:16:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:16:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:16:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:16:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:16:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:16:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:16:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:16:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:16:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:16:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:16:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:16:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:16:20,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:16:20,859 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:16:20,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:16:20 BoogieIcfgContainer [2021-02-22 02:16:20,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:16:20,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:16:20,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:16:20,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:16:20,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:16:17" (1/3) ... [2021-02-22 02:16:20,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c981e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:16:20, skipping insertion in model container [2021-02-22 02:16:20,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:16:18" (2/3) ... [2021-02-22 02:16:20,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c981e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:16:20, skipping insertion in model container [2021-02-22 02:16:20,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:16:20" (3/3) ... [2021-02-22 02:16:20,887 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2021-02-22 02:16:20,899 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:16:20,905 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:16:20,926 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:16:20,952 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:16:20,953 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:16:20,953 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:16:20,953 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:16:20,953 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:16:20,953 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:16:20,953 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:16:20,954 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:16:20,992 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states. [2021-02-22 02:16:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-22 02:16:21,013 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:16:21,014 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] [2021-02-22 02:16:21,015 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:16:21,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:16:21,029 INFO L82 PathProgramCache]: Analyzing trace with hash -974999555, now seen corresponding path program 1 times [2021-02-22 02:16:21,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:16:21,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302811302] [2021-02-22 02:16:21,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:16:21,138 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:16:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:16:21,476 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-22 02:16:21,477 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-22 02:16:21,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:21,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:21,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:21,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:21,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:21,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:21,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:16:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:16:21,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:21,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:21,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:21,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:16:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:16:21,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302811302] [2021-02-22 02:16:21,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:16:21,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:16:21,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061688188] [2021-02-22 02:16:21,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:16:21,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:16:21,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:16:21,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:16:21,691 INFO L87 Difference]: Start difference. First operand 687 states. Second operand 5 states. [2021-02-22 02:16:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:16:26,122 INFO L93 Difference]: Finished difference Result 1775 states and 2502 transitions. [2021-02-22 02:16:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 02:16:26,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2021-02-22 02:16:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:16:26,154 INFO L225 Difference]: With dead ends: 1775 [2021-02-22 02:16:26,154 INFO L226 Difference]: Without dead ends: 1033 [2021-02-22 02:16:26,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:16:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-02-22 02:16:26,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1003. [2021-02-22 02:16:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2021-02-22 02:16:26,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1351 transitions. [2021-02-22 02:16:26,474 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1351 transitions. Word has length 75 [2021-02-22 02:16:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:16:26,476 INFO L480 AbstractCegarLoop]: Abstraction has 1003 states and 1351 transitions. [2021-02-22 02:16:26,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:16:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1351 transitions. [2021-02-22 02:16:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-22 02:16:26,494 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:16:26,495 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:16:26,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:16:26,495 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:16:26,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:16:26,498 INFO L82 PathProgramCache]: Analyzing trace with hash 38921802, now seen corresponding path program 1 times [2021-02-22 02:16:26,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:16:26,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079877072] [2021-02-22 02:16:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:16:26,703 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 44 [2021-02-22 02:16:26,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:16:26,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:16:26,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,785 WARN L141 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-02-22 02:16:26,804 WARN L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-02-22 02:16:26,812 WARN L141 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-02-22 02:16:26,818 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:16:26,825 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:16:26,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:16:26,838 WARN L147 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size 33 [2021-02-22 02:16:26,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,848 WARN L141 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size [2021-02-22 02:16:26,849 WARN L147 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size 3 [2021-02-22 02:16:26,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,898 WARN L141 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-02-22 02:16:26,900 WARN L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-02-22 02:16:26,907 WARN L141 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-02-22 02:16:26,910 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:16:26,913 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:16:26,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:16:26,919 WARN L147 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size 33 [2021-02-22 02:16:26,929 WARN L141 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-02-22 02:16:26,931 WARN L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-02-22 02:16:26,935 WARN L141 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size [2021-02-22 02:16:26,936 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:16:26,938 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:16:26,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:16:26,943 WARN L147 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size 30 [2021-02-22 02:16:26,947 WARN L141 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-02-22 02:16:26,949 WARN L147 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size 11 [2021-02-22 02:16:26,952 WARN L141 QuantifierPusher]: treesize reduction 37, result has 7.5 percent of original size [2021-02-22 02:16:26,952 WARN L147 QuantifierPusher]: treesize reduction 37, result has 7.5 percent of original size 3 [2021-02-22 02:16:26,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:16:26,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:16:26,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:16:26,960 WARN L141 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size [2021-02-22 02:16:26,961 WARN L147 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size 3 [2021-02-22 02:16:26,961 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:16:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:16:27,013 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:16:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:16:27,086 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:16:27,163 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:16:27,163 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:16:27,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:16:27,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:16:27 BoogieIcfgContainer [2021-02-22 02:16:27,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:16:27,222 INFO L168 Benchmark]: Toolchain (without parser) took 9395.22 ms. Allocated memory was 153.1 MB in the beginning and 245.4 MB in the end (delta: 92.3 MB). Free memory was 127.0 MB in the beginning and 83.1 MB in the end (delta: 43.9 MB). Peak memory consumption was 137.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:16:27,224 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 136.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:16:27,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 929.03 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 122.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. [2021-02-22 02:16:27,231 INFO L168 Benchmark]: Boogie Preprocessor took 203.24 ms. Allocated memory is still 153.1 MB. Free memory was 122.0 MB in the beginning and 116.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:16:27,232 INFO L168 Benchmark]: RCFGBuilder took 1895.47 ms. Allocated memory was 153.1 MB in the beginning and 204.5 MB in the end (delta: 51.4 MB). Free memory was 116.3 MB in the beginning and 107.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 65.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:16:27,233 INFO L168 Benchmark]: TraceAbstraction took 6344.48 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 106.7 MB in the beginning and 83.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:16:27,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 136.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 929.03 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 122.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 203.24 ms. Allocated memory is still 153.1 MB. Free memory was 122.0 MB in the beginning and 116.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1895.47 ms. Allocated memory was 153.1 MB in the beginning and 204.5 MB in the end (delta: 51.4 MB). Free memory was 116.3 MB in the beginning and 107.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 65.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6344.48 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 106.7 MB in the beginning and 83.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 158]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int inputD = 4; [L18] int inputB = 2; [L19] int inputC = 3; [L20] int inputF = 6; [L21] int inputE = 5; [L22] int inputA = 1; [L25] int a21 = 7; [L26] int a15 = 8; [L27] int a12 = -49; [L28] int a24 = 1; [L887] int output = -1; [L890] COND TRUE 1 [L893] int input; [L894] input = __VERIFIER_nondet_int() [L895] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L898] CALL, EXPR calculate_output(input) [L31] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==6))) [L34] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==8))) [L37] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==9))) [L40] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==5)) && (a21==9))) [L43] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==10))) [L46] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==6))) [L49] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==5)) && (a21==10))) [L52] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==9))) [L55] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==10))) [L58] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==10))) [L61] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==6))) [L64] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==8))) [L67] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==9))) [L70] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==7))) [L73] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==10))) [L76] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==8))) [L79] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==9))) [L82] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==8))) [L85] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==10))) [L88] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==6))) [L91] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==6))) [L94] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==6))) [L97] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==7))) [L100] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==9))) [L103] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==9))) [L106] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==5)) && (a21==6))) [L109] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==10))) [L112] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==9))) [L115] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==8))) [L118] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==8))) [L121] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==7))) [L124] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==7))) [L127] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==10))) [L130] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==8))) [L133] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==8)) && (a21==6))) [L136] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==6))) [L139] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==9))) [L142] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==7))) [L145] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==7))) [L148] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==6))) [L151] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==8))) [L154] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==5)) && (a21==9))) [L157] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==8))) [L160] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==10))) [L163] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==10))) [L166] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==5)) && (a21==10))) [L169] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==5)) && (a21==6))) [L172] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==5)) && (a21==7))) [L175] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==5)) && (a21==8))) [L178] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==9))) [L181] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==9))) [L184] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==7))) [L187] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==10))) [L190] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==6))) [L193] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==7))) [L196] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==5)) && (a21==8))) [L199] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==6))) [L202] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==5)) && (a21==7))) [L205] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==7))) [L208] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==7))) [L211] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==8))) [L215] COND FALSE !((((a24==1) && ( ((11 < a12) && (80 >= a12)) && ((input == 5) && (a15==8)))) && (a21==9))) [L221] COND FALSE !((((a15==9) && ((((a21==9) || ((a21==7) || (a21==8))) && (input == 5)) && a12 <= -43 )) && (a24==1))) [L227] COND FALSE !(((a15==9) && (( ((-43 < a12) && (11 >= a12)) && ((a24==1) && (input == 2))) && (a21==8)))) [L233] COND FALSE !(((a24==1) && ((a15==8) && ( ((11 < a12) && (80 >= a12)) && ((input == 1) && ((a21==7) || (a21==8))))))) [L239] COND FALSE !((((((a21==10) && ( 80 < a12 && (a15==8))) || (((a15==9) && a12 <= -43 ) && (a21==6))) && (input == 2)) && (a24==1))) [L245] COND TRUE ((a24==1) && ((a15==9) && ((((a21==6) && 80 < a12 ) || (((a21==9) && ((11 < a12) && (80 >= a12)) ) || ( ((11 < a12) && (80 >= a12)) && (a21==10)))) && (input == 5)))) [L246] a12 = (((((a12 % 34)+ 23) - -139662) - 547970) - -408298) [L247] a15 = 6 [L248] a21 = 6 [L250] return -1; [L898] RET, EXPR calculate_output(input) [L898] output = calculate_output(input) [L890] COND TRUE 1 [L893] int input; [L894] input = __VERIFIER_nondet_int() [L895] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L898] CALL calculate_output(input) [L31] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==6))) [L34] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==8))) [L37] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==9))) [L40] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==5)) && (a21==9))) [L43] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==10))) [L46] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==6))) [L49] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==5)) && (a21==10))) [L52] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==9))) [L55] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==10))) [L58] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==10))) [L61] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==6))) [L64] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==8))) [L67] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==9))) [L70] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==7))) [L73] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==10))) [L76] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==8))) [L79] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==9))) [L82] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==8))) [L85] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==10))) [L88] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==6))) [L91] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==6))) [L94] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==6))) [L97] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==7))) [L100] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==9))) [L103] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==7)) && (a21==9))) [L106] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==5)) && (a21==6))) [L109] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==10))) [L112] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==9))) [L115] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==6)) && (a21==8))) [L118] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==8))) [L121] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==7))) [L124] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==7)) && (a21==7))) [L127] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==10))) [L130] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==7)) && (a21==8))) [L133] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==8)) && (a21==6))) [L136] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==6)) && (a21==6))) [L139] COND FALSE !(((( a12 <= -43 && (a24==1)) && (a15==7)) && (a21==9))) [L142] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==6)) && (a21==7))) [L145] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==7))) [L148] COND FALSE !(((( ((11 < a12) && (80 >= a12)) && (a24==1)) && (a15==5)) && (a21==6))) [L151] COND FALSE !(((( 80 < a12 && (a24==1)) && (a15==5)) && (a21==8))) [L154] COND FALSE !(((( ((-43 < a12) && (11 >= a12)) && (a24==1)) && (a15==5)) && (a21==9))) [L157] COND TRUE ((( 80 < a12 && (a24==1)) && (a15==6)) && (a21==8)) [L158] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 690 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 380 SDtfs, 2152 SDslu, 237 SDs, 0 SdLazy, 1422 SolverSat, 734 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1003occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 1 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...