/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/ifeqn3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 01:56:14,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 01:56:14,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 01:56:14,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 01:56:14,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 01:56:14,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 01:56:14,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 01:56:14,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 01:56:14,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 01:56:14,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 01:56:14,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 01:56:14,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 01:56:14,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 01:56:14,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 01:56:14,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 01:56:14,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 01:56:14,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 01:56:14,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 01:56:14,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 01:56:14,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 01:56:14,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 01:56:14,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 01:56:14,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 01:56:14,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 01:56:14,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 01:56:14,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 01:56:14,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 01:56:14,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 01:56:14,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 01:56:14,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 01:56:14,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 01:56:14,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 01:56:14,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 01:56:14,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 01:56:14,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 01:56:14,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 01:56:14,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 01:56:14,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 01:56:14,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 01:56:14,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 01:56:14,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 01:56:14,692 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 01:56:14,703 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 01:56:14,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 01:56:14,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 01:56:14,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 01:56:14,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 01:56:14,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 01:56:14,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 01:56:14,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 01:56:14,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 01:56:14,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 01:56:14,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 01:56:14,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 01:56:14,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 01:56:14,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 01:56:14,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 01:56:14,708 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 01:56:14,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 01:56:14,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 01:56:14,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:56:14,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 01:56:14,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 01:56:14,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 01:56:14,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 01:56:15,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 01:56:15,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 01:56:15,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 01:56:15,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 01:56:15,138 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 01:56:15,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ifeqn3f.c [2020-11-07 01:56:15,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64909787/eda5eae09e0745748b91a5dc99fa9d5f/FLAGcf48732ff [2020-11-07 01:56:15,878 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 01:56:15,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifeqn3f.c [2020-11-07 01:56:15,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64909787/eda5eae09e0745748b91a5dc99fa9d5f/FLAGcf48732ff [2020-11-07 01:56:16,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64909787/eda5eae09e0745748b91a5dc99fa9d5f [2020-11-07 01:56:16,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 01:56:16,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 01:56:16,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 01:56:16,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 01:56:16,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 01:56:16,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452be45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16, skipping insertion in model container [2020-11-07 01:56:16,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 01:56:16,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 01:56:16,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:56:16,454 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 01:56:16,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:56:16,505 INFO L208 MainTranslator]: Completed translation [2020-11-07 01:56:16,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16 WrapperNode [2020-11-07 01:56:16,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 01:56:16,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 01:56:16,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 01:56:16,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 01:56:16,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (1/1) ... [2020-11-07 01:56:16,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 01:56:16,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 01:56:16,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 01:56:16,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 01:56:16,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (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 01:56:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 01:56:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 01:56:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 01:56:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 01:56:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 01:56:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 01:56:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 01:56:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 01:56:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 01:56:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 01:56:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 01:56:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 01:56:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 01:56:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 01:56:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 01:56:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 01:56:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 01:56:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 01:56:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 01:56:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 01:56:16,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 01:56:16,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 01:56:17,006 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 01:56:17,007 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-07 01:56:17,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:17 BoogieIcfgContainer [2020-11-07 01:56:17,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 01:56:17,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 01:56:17,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 01:56:17,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 01:56:17,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:56:16" (1/3) ... [2020-11-07 01:56:17,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce11082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:17, skipping insertion in model container [2020-11-07 01:56:17,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:16" (2/3) ... [2020-11-07 01:56:17,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce11082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:17, skipping insertion in model container [2020-11-07 01:56:17,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:17" (3/3) ... [2020-11-07 01:56:17,019 INFO L111 eAbstractionObserver]: Analyzing ICFG ifeqn3f.c [2020-11-07 01:56:17,036 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 01:56:17,040 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 01:56:17,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 01:56:17,097 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 01:56:17,098 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 01:56:17,098 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 01:56:17,098 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 01:56:17,098 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 01:56:17,099 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 01:56:17,099 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 01:56:17,099 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 01:56:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-07 01:56:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-07 01:56:17,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:56:17,155 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 01:56:17,155 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:56:17,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:56:17,179 INFO L82 PathProgramCache]: Analyzing trace with hash 656538121, now seen corresponding path program 1 times [2020-11-07 01:56:17,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:56:17,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177356346] [2020-11-07 01:56:17,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:56:17,308 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:56:17,484 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-11-07 01:56:17,484 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 01:56:17,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 01:56:17,532 WARN L253 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-07 01:56:17,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:56:17 BoogieIcfgContainer [2020-11-07 01:56:17,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 01:56:17,540 INFO L168 Benchmark]: Toolchain (without parser) took 1328.68 ms. Allocated memory is still 152.0 MB. Free memory was 128.1 MB in the beginning and 118.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:17,544 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 152.0 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:56:17,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.86 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 117.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:17,550 INFO L168 Benchmark]: Boogie Preprocessor took 39.22 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 115.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:17,552 INFO L168 Benchmark]: RCFGBuilder took 462.53 ms. Allocated memory is still 152.0 MB. Free memory was 115.7 MB in the beginning and 131.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:17,554 INFO L168 Benchmark]: TraceAbstraction took 524.28 ms. Allocated memory is still 152.0 MB. Free memory was 131.1 MB in the beginning and 118.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:17,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 152.0 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 290.86 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 117.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.22 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 115.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 462.53 ms. Allocated memory is still 152.0 MB. Free memory was 115.7 MB in the beginning and 131.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 524.28 ms. Allocated memory is still 152.0 MB. Free memory was 131.1 MB in the beginning and 118.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 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