/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/matrix-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:24:24,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:24:24,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:24:24,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 02:24:24,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 02:24:24,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 02:24:24,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 02:24:24,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 02:24:24,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 02:24:24,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 02:24:24,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 02:24:24,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 02:24:24,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:24:24,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:24:24,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:24:24,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:24:24,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:24:24,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:24:24,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:24:24,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:24:24,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:24:24,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:24:24,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:24:24,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:24:24,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 02:24:24,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 02:24:24,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 02:24:24,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 02:24:24,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 02:24:24,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 02:24:24,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 02:24:24,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 02:24:24,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 02:24:24,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 02:24:24,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 02:24:24,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 02:24:24,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 02:24:24,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 02:24:24,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:24:24,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:24:24,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:24:24,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:24:24,459 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:24:24,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:24:24,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:24:24,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:24:24,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:24:24,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:24:24,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:24:24,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:24:24,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:24:24,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:24:24,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:24:24,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:24:24,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:24:24,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:24:24,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:24:24,463 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:24:24,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:24:24,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:24:24,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:24:24,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:24:24,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:24:24,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:24:24,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:24:24,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:24:24,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:24:24,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:24:24,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:24:24,911 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:24:24,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2020-10-24 02:24:24,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c84e2dd/63f71318eb764a9fb76648811f925143/FLAG0466343cc [2020-10-24 02:24:25,556 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:24:25,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-2.c [2020-10-24 02:24:25,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c84e2dd/63f71318eb764a9fb76648811f925143/FLAG0466343cc [2020-10-24 02:24:25,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c84e2dd/63f71318eb764a9fb76648811f925143 [2020-10-24 02:24:25,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:24:25,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:24:25,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:25,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:24:25,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:24:25,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:25" (1/1) ... [2020-10-24 02:24:25,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30063588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:25, skipping insertion in model container [2020-10-24 02:24:25,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:25" (1/1) ... [2020-10-24 02:24:25,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:24:25,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:24:26,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:26,140 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:24:26,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:26,197 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:24:26,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26 WrapperNode [2020-10-24 02:24:26,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:26,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:24:26,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:24:26,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:24:26,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (1/1) ... [2020-10-24 02:24:26,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (1/1) ... [2020-10-24 02:24:26,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (1/1) ... [2020-10-24 02:24:26,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (1/1) ... [2020-10-24 02:24:26,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (1/1) ... [2020-10-24 02:24:26,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (1/1) ... [2020-10-24 02:24:26,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (1/1) ... [2020-10-24 02:24:26,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:24:26,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:24:26,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:24:26,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:24:26,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (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 [2020-10-24 02:24:26,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:24:26,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:24:26,325 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:24:26,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 02:24:26,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:24:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:24:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:24:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:24:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:24:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:24:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-24 02:24:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:24:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:24:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:24:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:24:26,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:24:26,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:24:26,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:24:26,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:24:26,893 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:24:26,893 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-24 02:24:26,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:26 BoogieIcfgContainer [2020-10-24 02:24:26,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:24:26,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:24:26,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:24:26,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:24:26,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:24:25" (1/3) ... [2020-10-24 02:24:26,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc73259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:26, skipping insertion in model container [2020-10-24 02:24:26,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:26" (2/3) ... [2020-10-24 02:24:26,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc73259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:26, skipping insertion in model container [2020-10-24 02:24:26,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:26" (3/3) ... [2020-10-24 02:24:26,909 INFO L111 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2020-10-24 02:24:26,920 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:24:26,926 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:24:26,942 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:24:26,976 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:24:26,976 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:24:26,976 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:24:26,977 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:24:26,977 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:24:26,977 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:24:26,977 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:24:26,977 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:24:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-24 02:24:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-24 02:24:27,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:27,008 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] [2020-10-24 02:24:27,008 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:27,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:27,014 INFO L82 PathProgramCache]: Analyzing trace with hash -397469311, now seen corresponding path program 1 times [2020-10-24 02:24:27,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:27,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646883446] [2020-10-24 02:24:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:27,145 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-24 02:24:27,146 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-24 02:24:27,146 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 02:24:27,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:24:27,167 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 02:24:27,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:24:27 BoogieIcfgContainer [2020-10-24 02:24:27,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:24:27,170 INFO L168 Benchmark]: Toolchain (without parser) took 1261.98 ms. Allocated memory is still 163.6 MB. Free memory was 138.9 MB in the beginning and 133.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:27,171 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 163.6 MB. Free memory is still 145.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:24:27,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.69 ms. Allocated memory is still 163.6 MB. Free memory was 138.3 MB in the beginning and 128.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:27,173 INFO L168 Benchmark]: Boogie Preprocessor took 39.84 ms. Allocated memory is still 163.6 MB. Free memory was 128.4 MB in the beginning and 126.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:27,174 INFO L168 Benchmark]: RCFGBuilder took 657.93 ms. Allocated memory is still 163.6 MB. Free memory was 126.8 MB in the beginning and 144.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:27,175 INFO L168 Benchmark]: TraceAbstraction took 266.42 ms. Allocated memory is still 163.6 MB. Free memory was 143.9 MB in the beginning and 133.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:27,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 163.6 MB. Free memory is still 145.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 284.69 ms. Allocated memory is still 163.6 MB. Free memory was 138.3 MB in the beginning and 128.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.84 ms. Allocated memory is still 163.6 MB. Free memory was 128.4 MB in the beginning and 126.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 657.93 ms. Allocated memory is still 163.6 MB. Free memory was 126.8 MB in the beginning and 144.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 266.42 ms. Allocated memory is still 163.6 MB. Free memory was 143.9 MB in the beginning and 133.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] unsigned int j,k; [L19] int matriz[N_COL][N_LIN], maior; [L21] maior = __VERIFIER_nondet_int() [L22] j=0 [L22] COND FALSE !(j