/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/trex01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 01:58:11,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 01:58:11,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 01:58:11,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 01:58:11,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 01:58:11,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 01:58:11,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 01:58:11,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 01:58:11,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 01:58:11,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 01:58:11,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 01:58:11,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 01:58:11,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 01:58:11,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 01:58:11,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 01:58:11,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 01:58:11,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 01:58:11,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 01:58:11,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 01:58:11,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 01:58:11,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 01:58:11,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 01:58:11,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 01:58:11,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 01:58:11,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 01:58:11,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 01:58:11,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 01:58:11,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 01:58:11,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 01:58:11,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 01:58:11,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 01:58:11,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 01:58:11,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 01:58:11,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 01:58:11,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 01:58:11,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 01:58:11,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 01:58:11,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 01:58:11,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 01:58:11,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 01:58:11,628 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 01:58:11,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 01:58:11,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 01:58:11,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 01:58:11,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 01:58:11,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 01:58:11,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 01:58:11,630 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 01:58:11,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 01:58:11,630 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 01:58:11,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 01:58:11,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 01:58:11,631 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 01:58:11,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 01:58:11,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 01:58:11,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:58:11,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 01:58:11,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 01:58:11,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 01:58:11,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 01:58:12,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 01:58:12,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 01:58:12,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 01:58:12,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 01:58:12,182 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 01:58:12,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-1.c [2020-11-07 01:58:12,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ed61719/9fccd68bd1ab41e5944e90eddafa39ed/FLAGa30d13893 [2020-11-07 01:58:13,049 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 01:58:13,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01-1.c [2020-11-07 01:58:13,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ed61719/9fccd68bd1ab41e5944e90eddafa39ed/FLAGa30d13893 [2020-11-07 01:58:13,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ed61719/9fccd68bd1ab41e5944e90eddafa39ed [2020-11-07 01:58:13,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 01:58:13,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 01:58:13,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 01:58:13,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 01:58:13,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 01:58:13,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cd52d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13, skipping insertion in model container [2020-11-07 01:58:13,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 01:58:13,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 01:58:13,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:58:13,615 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 01:58:13,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:58:13,657 INFO L208 MainTranslator]: Completed translation [2020-11-07 01:58:13,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13 WrapperNode [2020-11-07 01:58:13,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 01:58:13,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 01:58:13,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 01:58:13,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 01:58:13,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (1/1) ... [2020-11-07 01:58:13,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 01:58:13,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 01:58:13,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 01:58:13,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 01:58:13,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (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 [2020-11-07 01:58:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 01:58:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 01:58:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 01:58:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 01:58:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-07 01:58:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 01:58:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 01:58:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 01:58:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 01:58:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 01:58:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 01:58:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-11-07 01:58:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 01:58:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-07 01:58:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 01:58:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 01:58:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 01:58:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 01:58:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 01:58:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 01:58:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 01:58:14,402 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 01:58:14,403 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 01:58:14,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:14 BoogieIcfgContainer [2020-11-07 01:58:14,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 01:58:14,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 01:58:14,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 01:58:14,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 01:58:14,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:58:13" (1/3) ... [2020-11-07 01:58:14,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbeaed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:14, skipping insertion in model container [2020-11-07 01:58:14,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:13" (2/3) ... [2020-11-07 01:58:14,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbeaed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:14, skipping insertion in model container [2020-11-07 01:58:14,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:14" (3/3) ... [2020-11-07 01:58:14,417 INFO L111 eAbstractionObserver]: Analyzing ICFG trex01-1.c [2020-11-07 01:58:14,436 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 01:58:14,440 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 01:58:14,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 01:58:14,479 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 01:58:14,479 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 01:58:14,479 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 01:58:14,479 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 01:58:14,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 01:58:14,480 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 01:58:14,480 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 01:58:14,480 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 01:58:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-11-07 01:58:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-07 01:58:14,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:58:14,510 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] [2020-11-07 01:58:14,511 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:58:14,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:58:14,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1845023060, now seen corresponding path program 1 times [2020-11-07 01:58:14,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:58:14,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846085968] [2020-11-07 01:58:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:58:14,608 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:58:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 01:58:14,723 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 01:58:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 01:58:14,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 01:58:14,886 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 01:58:14,886 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 01:58:14,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 01:58:14,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:58:14 BoogieIcfgContainer [2020-11-07 01:58:14,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 01:58:14,927 INFO L168 Benchmark]: Toolchain (without parser) took 1568.92 ms. Allocated memory is still 154.1 MB. Free memory was 130.9 MB in the beginning and 132.3 MB in the end (delta: -1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:58:14,930 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 154.1 MB. Free memory is still 131.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:58:14,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.41 ms. Allocated memory is still 154.1 MB. Free memory was 130.2 MB in the beginning and 120.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 01:58:14,941 INFO L168 Benchmark]: Boogie Preprocessor took 43.95 ms. Allocated memory is still 154.1 MB. Free memory was 120.9 MB in the beginning and 119.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 01:58:14,943 INFO L168 Benchmark]: RCFGBuilder took 701.32 ms. Allocated memory is still 154.1 MB. Free memory was 119.3 MB in the beginning and 102.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-11-07 01:58:14,945 INFO L168 Benchmark]: TraceAbstraction took 514.47 ms. Allocated memory is still 154.1 MB. Free memory was 102.1 MB in the beginning and 132.3 MB in the end (delta: -30.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:58:14,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 154.1 MB. Free memory is still 131.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 296.41 ms. Allocated memory is still 154.1 MB. Free memory was 130.2 MB in the beginning and 120.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.95 ms. Allocated memory is still 154.1 MB. Free memory was 120.9 MB in the beginning and 119.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 701.32 ms. Allocated memory is still 154.1 MB. Free memory was 119.3 MB in the beginning and 102.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 514.47 ms. Allocated memory is still 154.1 MB. Free memory was 102.1 MB in the beginning and 132.3 MB in the end (delta: -30.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L36] _Bool c = __VERIFIER_nondet_bool(); [L37] COND FALSE !(\read(c)) [L40] CALL f(2) [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L16] COND FALSE !(!(k <= 1073741823)) [L19] COND FALSE !(z < k) [L20] CALL __VERIFIER_assert(z>=2) [L6] COND TRUE !(cond) [L7] CALL reach_error() [L3] __assert_fail("0", "trex01-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, 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...