/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-36cd7be [2021-02-24 04:42:38,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:42:38,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:42:38,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:42:38,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:42:38,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:42:38,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:42:38,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:42:38,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:42:38,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:42:38,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:42:38,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:42:38,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:42:38,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:42:38,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:42:38,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:42:38,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:42:38,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:42:38,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:42:38,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:42:38,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:42:38,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:42:38,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:42:38,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:42:38,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:42:38,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:42:38,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:42:38,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:42:38,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:42:38,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:42:38,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:42:38,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:42:38,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:42:38,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:42:38,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:42:38,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:42:38,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:42:38,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:42:38,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:42:38,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:42:38,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:42:38,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:42:38,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:42:38,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:42:38,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:42:38,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:42:38,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:42:38,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:42:38,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:42:38,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:42:38,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:42:38,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:42:38,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:42:38,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:42:38,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:42:38,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:42:38,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:42:38,556 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:42:38,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:42:38,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:42:38,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:42:38,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:42:38,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:42:38,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:42:38,558 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:42:38,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:42:38,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:42:38,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:42:38,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:42:38,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:42:38,996 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:42:38,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2021-02-24 04:42:39,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197872cac/b64ec77ac4654bd7a92e7ef3f1198bf0/FLAG2f5a6a6b5 [2021-02-24 04:42:39,878 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:42:39,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2021-02-24 04:42:39,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197872cac/b64ec77ac4654bd7a92e7ef3f1198bf0/FLAG2f5a6a6b5 [2021-02-24 04:42:40,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197872cac/b64ec77ac4654bd7a92e7ef3f1198bf0 [2021-02-24 04:42:40,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:42:40,111 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:42:40,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:42:40,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:42:40,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:42:40,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669fcdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40, skipping insertion in model container [2021-02-24 04:42:40,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:42:40,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:42:40,413 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] [2021-02-24 04:42:40,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:42:40,706 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:42:40,731 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] [2021-02-24 04:42:40,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:42:40,846 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:42:40,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40 WrapperNode [2021-02-24 04:42:40,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:42:40,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:42:40,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:42:40,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:42:40,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (1/1) ... [2021-02-24 04:42:40,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:42:40,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:42:40,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:42:40,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:42:40,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (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 [2021-02-24 04:42:41,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:42:41,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:42:41,114 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:42:41,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:42:41,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:42:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:42:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:42:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:42:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:42:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:42:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:42:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:42:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:42:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:42:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:42:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:42:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:42:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:42:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:42:43,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:42:43,188 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:42:43,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:42:43 BoogieIcfgContainer [2021-02-24 04:42:43,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:42:43,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:42:43,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:42:43,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:42:43,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:42:40" (1/3) ... [2021-02-24 04:42:43,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408e54e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:42:43, skipping insertion in model container [2021-02-24 04:42:43,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:42:40" (2/3) ... [2021-02-24 04:42:43,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408e54e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:42:43, skipping insertion in model container [2021-02-24 04:42:43,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:42:43" (3/3) ... [2021-02-24 04:42:43,200 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2021-02-24 04:42:43,207 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:42:43,213 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:42:43,233 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:42:43,258 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:42:43,259 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:42:43,259 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:42:43,259 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:42:43,259 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:42:43,259 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:42:43,259 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:42:43,260 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:42:43,289 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states. [2021-02-24 04:42:43,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-24 04:42:43,306 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:42:43,307 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] [2021-02-24 04:42:43,308 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:42:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:42:43,317 INFO L82 PathProgramCache]: Analyzing trace with hash -974999555, now seen corresponding path program 1 times [2021-02-24 04:42:43,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:42:43,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089616182] [2021-02-24 04:42:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:42:43,403 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:42:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:42:43,761 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-24 04:42:43,762 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-24 04:42:43,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:43,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:43,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:43,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:43,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:43,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:43,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:42:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:42:43,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:43,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:43,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:43,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:42:43,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:42:43,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089616182] [2021-02-24 04:42:43,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:42:43,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:42:43,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875837830] [2021-02-24 04:42:43,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:42:43,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:42:43,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:42:43,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:42:43,939 INFO L87 Difference]: Start difference. First operand 687 states. Second operand 5 states. [2021-02-24 04:42:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:42:48,230 INFO L93 Difference]: Finished difference Result 1775 states and 2502 transitions. [2021-02-24 04:42:48,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:42:48,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2021-02-24 04:42:48,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:42:48,262 INFO L225 Difference]: With dead ends: 1775 [2021-02-24 04:42:48,263 INFO L226 Difference]: Without dead ends: 1033 [2021-02-24 04:42:48,279 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 [2021-02-24 04:42:48,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-02-24 04:42:48,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1003. [2021-02-24 04:42:48,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2021-02-24 04:42:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1351 transitions. [2021-02-24 04:42:48,541 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1351 transitions. Word has length 75 [2021-02-24 04:42:48,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:42:48,542 INFO L480 AbstractCegarLoop]: Abstraction has 1003 states and 1351 transitions. [2021-02-24 04:42:48,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:42:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1351 transitions. [2021-02-24 04:42:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 04:42:48,551 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:42:48,552 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] [2021-02-24 04:42:48,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:42:48,553 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:42:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:42:48,554 INFO L82 PathProgramCache]: Analyzing trace with hash 38921802, now seen corresponding path program 1 times [2021-02-24 04:42:48,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:42:48,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628815845] [2021-02-24 04:42:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:42:48,766 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 44 [2021-02-24 04:42:48,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:42:48,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:42:48,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,841 WARN L141 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-02-24 04:42:48,859 WARN L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-02-24 04:42:48,866 WARN L141 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-02-24 04:42:48,871 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:42:48,876 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:42:48,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:42:48,887 WARN L147 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size 33 [2021-02-24 04:42:48,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,896 WARN L141 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size [2021-02-24 04:42:48,896 WARN L147 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size 3 [2021-02-24 04:42:48,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,931 WARN L141 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-02-24 04:42:48,934 WARN L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-02-24 04:42:48,938 WARN L141 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-02-24 04:42:48,940 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:42:48,942 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:42:48,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:42:48,948 WARN L147 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size 33 [2021-02-24 04:42:48,955 WARN L141 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-02-24 04:42:48,960 WARN L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-02-24 04:42:48,963 WARN L141 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size [2021-02-24 04:42:48,965 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:42:48,967 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:42:48,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:42:48,973 WARN L147 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size 30 [2021-02-24 04:42:48,977 WARN L141 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-02-24 04:42:48,979 WARN L147 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size 11 [2021-02-24 04:42:48,982 WARN L141 QuantifierPusher]: treesize reduction 37, result has 7.5 percent of original size [2021-02-24 04:42:48,983 WARN L147 QuantifierPusher]: treesize reduction 37, result has 7.5 percent of original size 3 [2021-02-24 04:42:48,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:42:48,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:42:48,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:42:48,991 WARN L141 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size [2021-02-24 04:42:48,992 WARN L147 QuantifierPusher]: treesize reduction 30, result has 9.1 percent of original size 3 [2021-02-24 04:42:48,992 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:42:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:42:49,057 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:42:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:42:49,108 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:42:49,160 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:42:49,160 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:42:49,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:42:49,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:42:49 BoogieIcfgContainer [2021-02-24 04:42:49,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:42:49,194 INFO L168 Benchmark]: Toolchain (without parser) took 9094.84 ms. Allocated memory was 151.0 MB in the beginning and 238.0 MB in the end (delta: 87.0 MB). Free memory was 125.1 MB in the beginning and 129.8 MB in the end (delta: -4.6 MB). Peak memory consumption was 83.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:42:49,195 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 125.2 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:42:49,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.11 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 92.0 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:42:49,196 INFO L168 Benchmark]: Boogie Preprocessor took 137.39 ms. Allocated memory is still 151.0 MB. Free memory was 92.0 MB in the beginning and 86.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:42:49,197 INFO L168 Benchmark]: RCFGBuilder took 2203.80 ms. Allocated memory is still 151.0 MB. Free memory was 86.4 MB in the beginning and 64.7 MB in the end (delta: 21.6 MB). Peak memory consumption was 38.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:42:49,198 INFO L168 Benchmark]: TraceAbstraction took 5999.70 ms. Allocated memory was 151.0 MB in the beginning and 238.0 MB in the end (delta: 87.0 MB). Free memory was 64.2 MB in the beginning and 129.8 MB in the end (delta: -65.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:42:49,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 125.2 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 734.11 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 92.0 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.39 ms. Allocated memory is still 151.0 MB. Free memory was 92.0 MB in the beginning and 86.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2203.80 ms. Allocated memory is still 151.0 MB. Free memory was 86.4 MB in the beginning and 64.7 MB in the end (delta: 21.6 MB). Peak memory consumption was 38.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5999.70 ms. Allocated memory was 151.0 MB in the beginning and 238.0 MB in the end (delta: 87.0 MB). Free memory was 64.2 MB in the beginning and 129.8 MB in the end (delta: -65.5 MB). Peak memory consumption was 21.5 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: 5.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 4.3s, 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, 2.9s 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...