/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/array-fpi/nsqm-iff.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 01:56:28,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 01:56:28,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 01:56:28,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 01:56:28,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 01:56:28,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 01:56:28,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 01:56:28,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 01:56:28,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 01:56:28,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 01:56:28,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 01:56:28,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 01:56:28,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 01:56:28,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 01:56:28,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 01:56:28,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 01:56:28,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 01:56:28,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 01:56:28,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 01:56:28,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 01:56:28,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 01:56:28,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 01:56:28,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 01:56:28,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 01:56:28,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 01:56:28,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 01:56:28,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 01:56:28,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 01:56:28,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 01:56:28,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 01:56:28,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 01:56:28,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 01:56:28,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 01:56:28,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 01:56:28,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 01:56:28,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 01:56:28,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 01:56:28,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 01:56:28,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 01:56:28,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 01:56:28,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 01:56:28,251 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 01:56:28,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 01:56:28,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 01:56:28,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 01:56:28,267 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 01:56:28,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 01:56:28,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 01:56:28,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 01:56:28,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 01:56:28,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 01:56:28,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 01:56:28,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 01:56:28,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 01:56:28,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 01:56:28,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 01:56:28,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 01:56:28,270 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 01:56:28,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 01:56:28,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 01:56:28,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:56:28,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 01:56:28,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 01:56:28,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 01:56:28,271 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 01:56:28,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 01:56:28,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 01:56:28,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 01:56:28,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 01:56:28,690 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 01:56:28,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/nsqm-iff.c [2020-11-07 01:56:28,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76d8025a/9e917058fb194c45bec7eceb9a2089a6/FLAG2fe9129b3 [2020-11-07 01:56:29,505 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 01:56:29,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/nsqm-iff.c [2020-11-07 01:56:29,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76d8025a/9e917058fb194c45bec7eceb9a2089a6/FLAG2fe9129b3 [2020-11-07 01:56:29,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76d8025a/9e917058fb194c45bec7eceb9a2089a6 [2020-11-07 01:56:29,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 01:56:29,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 01:56:29,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 01:56:29,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 01:56:29,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 01:56:29,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:29,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db729b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29, skipping insertion in model container [2020-11-07 01:56:29,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:29,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 01:56:29,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 01:56:29,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:56:29,916 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 01:56:29,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:56:29,985 INFO L208 MainTranslator]: Completed translation [2020-11-07 01:56:29,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29 WrapperNode [2020-11-07 01:56:29,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 01:56:29,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 01:56:29,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 01:56:29,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 01:56:30,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:30,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:30,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:30,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:30,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:30,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:30,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (1/1) ... [2020-11-07 01:56:30,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 01:56:30,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 01:56:30,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 01:56:30,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 01:56:30,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (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 01:56:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 01:56:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 01:56:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 01:56:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 01:56:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 01:56:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 01:56:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 01:56:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 01:56:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 01:56:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 01:56:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 01:56:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 01:56:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 01:56:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 01:56:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 01:56:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 01:56:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 01:56:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 01:56:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 01:56:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 01:56:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 01:56:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 01:56:30,807 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 01:56:30,808 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-07 01:56:30,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:30 BoogieIcfgContainer [2020-11-07 01:56:30,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 01:56:30,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 01:56:30,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 01:56:30,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 01:56:30,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:56:29" (1/3) ... [2020-11-07 01:56:30,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5140449b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:30, skipping insertion in model container [2020-11-07 01:56:30,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:29" (2/3) ... [2020-11-07 01:56:30,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5140449b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:30, skipping insertion in model container [2020-11-07 01:56:30,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:30" (3/3) ... [2020-11-07 01:56:30,821 INFO L111 eAbstractionObserver]: Analyzing ICFG nsqm-iff.c [2020-11-07 01:56:30,837 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 01:56:30,841 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 01:56:30,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 01:56:30,885 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 01:56:30,885 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 01:56:30,886 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 01:56:30,886 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 01:56:30,886 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 01:56:30,886 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 01:56:30,886 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 01:56:30,886 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 01:56:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-07 01:56:30,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-07 01:56:30,918 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:56:30,919 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] [2020-11-07 01:56:30,920 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:56:30,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:56:30,928 INFO L82 PathProgramCache]: Analyzing trace with hash 656538121, now seen corresponding path program 1 times [2020-11-07 01:56:30,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:56:30,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923485895] [2020-11-07 01:56:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:56:31,033 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:56:31,118 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-11-07 01:56:31,118 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 01:56:31,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 01:56:31,145 WARN L253 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-07 01:56:31,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:56:31 BoogieIcfgContainer [2020-11-07 01:56:31,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 01:56:31,149 INFO L168 Benchmark]: Toolchain (without parser) took 1604.60 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 117.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:31,150 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:56:31,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.62 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 116.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:31,152 INFO L168 Benchmark]: Boogie Preprocessor took 61.79 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:31,153 INFO L168 Benchmark]: RCFGBuilder took 760.64 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 130.1 MB in the end (delta: -15.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:31,154 INFO L168 Benchmark]: TraceAbstraction took 333.74 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 117.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:31,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 435.62 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 116.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.79 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 760.64 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 130.1 MB in the end (delta: -15.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 333.74 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 117.5 MB in the end (delta: 12.1 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: 10]: 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: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 [L31] COND FALSE !(i