/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -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 06:35:32,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:35:32,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:35:32,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:35:32,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:35:32,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:35:32,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:35:32,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:35:32,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:35:32,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:35:32,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:35:32,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:35:32,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:35:32,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:35:32,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:35:32,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:35:32,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:35:32,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:35:32,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:35:32,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:35:32,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:35:32,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:35:32,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:35:32,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:35:32,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:35:32,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:35:32,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:35:32,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:35:32,310 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 06:35:32,325 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:35:32,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:35:32,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:35:32,330 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:35:32,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:35:32,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:35:32,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:35:32,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:35:32,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:35:32,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:35:32,333 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:35:32,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:35:32,334 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:35:32,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:35:32,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:35:32,334 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:35:32,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:35:32,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:35:32,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:35:32,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:35:32,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:35:32,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:35:32,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:35:32,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:35:32,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:35:32,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:35:32,779 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:35:32,779 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:35:32,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-1.c [2020-11-07 06:35:32,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1a34482/151f074c3e974a7e92ee67bf2cf260d8/FLAGfed58c193 [2020-11-07 06:35:33,517 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:35:33,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01-1.c [2020-11-07 06:35:33,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1a34482/151f074c3e974a7e92ee67bf2cf260d8/FLAGfed58c193 [2020-11-07 06:35:33,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1a34482/151f074c3e974a7e92ee67bf2cf260d8 [2020-11-07 06:35:33,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:35:33,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:35:33,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:33,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:35:33,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:35:33,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:33" (1/1) ... [2020-11-07 06:35:33,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af2a2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:33, skipping insertion in model container [2020-11-07 06:35:33,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:33" (1/1) ... [2020-11-07 06:35:33,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:35:33,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:35:34,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:34,091 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:35:34,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:34,146 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:35:34,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34 WrapperNode [2020-11-07 06:35:34,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:34,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:35:34,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:35:34,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:35:34,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (1/1) ... [2020-11-07 06:35:34,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (1/1) ... [2020-11-07 06:35:34,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (1/1) ... [2020-11-07 06:35:34,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (1/1) ... [2020-11-07 06:35:34,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (1/1) ... [2020-11-07 06:35:34,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (1/1) ... [2020-11-07 06:35:34,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (1/1) ... [2020-11-07 06:35:34,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:35:34,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:35:34,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:35:34,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:35:34,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (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 06:35:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:35:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:35:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:35:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 06:35:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-07 06:35:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:35:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:35:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:35:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:35:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:35:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:35:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-11-07 06:35:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:35:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-07 06:35:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:35:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:35:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:35:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:35:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:35:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:35:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:35:34,761 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:35:34,762 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 06:35:34,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:34 BoogieIcfgContainer [2020-11-07 06:35:34,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:35:34,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:35:34,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:35:34,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:35:34,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:35:33" (1/3) ... [2020-11-07 06:35:34,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5008a7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:34, skipping insertion in model container [2020-11-07 06:35:34,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:34" (2/3) ... [2020-11-07 06:35:34,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5008a7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:34, skipping insertion in model container [2020-11-07 06:35:34,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:34" (3/3) ... [2020-11-07 06:35:34,805 INFO L111 eAbstractionObserver]: Analyzing ICFG trex01-1.c [2020-11-07 06:35:34,823 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:35:34,827 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:35:34,841 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:35:34,869 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:35:34,869 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:35:34,870 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:35:34,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:35:34,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:35:34,870 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:35:34,870 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:35:34,871 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:35:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-11-07 06:35:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-07 06:35:34,902 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:34,903 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 06:35:34,904 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:34,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1845023060, now seen corresponding path program 1 times [2020-11-07 06:35:34,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:34,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444512208] [2020-11-07 06:35:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 06:35:35,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 06:35:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 06:35:35,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 06:35:35,211 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 06:35:35,212 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 06:35:35,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:35:35,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:35:35 BoogieIcfgContainer [2020-11-07 06:35:35,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:35:35,256 INFO L168 Benchmark]: Toolchain (without parser) took 1383.65 ms. Allocated memory is still 156.2 MB. Free memory was 132.3 MB in the beginning and 124.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:35,257 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 156.2 MB. Free memory was 129.2 MB in the beginning and 129.1 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:35,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.24 ms. Allocated memory is still 156.2 MB. Free memory was 131.6 MB in the beginning and 121.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:35,259 INFO L168 Benchmark]: Boogie Preprocessor took 71.46 ms. Allocated memory is still 156.2 MB. Free memory was 121.8 MB in the beginning and 120.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:35,260 INFO L168 Benchmark]: RCFGBuilder took 540.96 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 104.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:35,261 INFO L168 Benchmark]: TraceAbstraction took 483.01 ms. Allocated memory is still 156.2 MB. Free memory was 103.7 MB in the beginning and 124.6 MB in the end (delta: -20.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:35,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 156.2 MB. Free memory was 129.2 MB in the beginning and 129.1 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 268.24 ms. Allocated memory is still 156.2 MB. Free memory was 131.6 MB in the beginning and 121.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 71.46 ms. Allocated memory is still 156.2 MB. Free memory was 121.8 MB in the beginning and 120.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 540.96 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 104.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 483.01 ms. Allocated memory is still 156.2 MB. Free memory was 103.7 MB in the beginning and 124.6 MB in the end (delta: -20.9 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(); VAL [__VERIFIER_nondet_bool()=0, c=0] [L37] COND FALSE !(\read(c)) VAL [c=0] [L40] CALL f(2) VAL [\old(d)=2] [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=2, __VERIFIER_nondet_int()=0, d=2, x=0] [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=2, __VERIFIER_nondet_int()=0, d=2, x=0, y=0] [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=2, __VERIFIER_nondet_int()=0, d=2, k=0, x=0, y=0] [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=2, d=2, k=0, x=0, y=0, z=1] [L16] COND FALSE !(!(k <= 1073741823)) VAL [\old(d)=2, d=2, k=0, x=0, y=0, z=1] [L19] COND FALSE !(z < k) VAL [\old(d)=2, d=2, k=0, x=0, y=0, z=1] [L20] CALL __VERIFIER_assert(z>=2) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [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: 0.3s, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...