/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/array-fpi/ifeqn2f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:34:17,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:34:17,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:34:17,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:34:17,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:34:17,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:34:17,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:34:17,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:34:17,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:34:17,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:34:17,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:34:17,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:34:17,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:34:17,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:34:17,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:34:17,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:34:17,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:34:17,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:34:17,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:34:17,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:34:17,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:34:17,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:34:17,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:34:17,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:34:17,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:34:17,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 06:34:17,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 06:34:17,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 06:34:17,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 06:34:17,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 06:34:17,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 06:34:17,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 06:34:17,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 06:34:17,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:34:17,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:34:17,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:34:17,816 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 06:34:17,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:34:17,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:34:17,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:34:17,845 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:34:17,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:34:17,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:34:17,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:34:17,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:34:17,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:34:17,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:34:17,847 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:34:17,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:34:17,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:34:17,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:34:17,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:34:17,849 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:34:17,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:34:17,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:34:17,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:34:17,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:34:17,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:34:17,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:34:17,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:34:18,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:34:18,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:34:18,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:34:18,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:34:18,275 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:34:18,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ifeqn2f.c [2020-11-07 06:34:18,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636e2d777/b7e04c3d6afa4eb6a3ec9e5d4a022848/FLAG3243f0458 [2020-11-07 06:34:19,063 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:34:19,064 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifeqn2f.c [2020-11-07 06:34:19,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636e2d777/b7e04c3d6afa4eb6a3ec9e5d4a022848/FLAG3243f0458 [2020-11-07 06:34:19,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636e2d777/b7e04c3d6afa4eb6a3ec9e5d4a022848 [2020-11-07 06:34:19,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:34:19,368 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:34:19,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:34:19,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:34:19,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:34:19,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a41c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19, skipping insertion in model container [2020-11-07 06:34:19,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:34:19,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:34:19,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:34:19,598 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:34:19,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:34:19,641 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:34:19,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19 WrapperNode [2020-11-07 06:34:19,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:34:19,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:34:19,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:34:19,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:34:19,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (1/1) ... [2020-11-07 06:34:19,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:34:19,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:34:19,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:34:19,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:34:19,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (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 06:34:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:34:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:34:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:34:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 06:34:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 06:34:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:34:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:34:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:34:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:34:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:34:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 06:34:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:34:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:34:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 06:34:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:34:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 06:34:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:34:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:34:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:34:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:34:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:34:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:34:20,195 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:34:20,195 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-07 06:34:20,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:34:20 BoogieIcfgContainer [2020-11-07 06:34:20,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:34:20,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:34:20,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:34:20,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:34:20,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:34:19" (1/3) ... [2020-11-07 06:34:20,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f89ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:34:20, skipping insertion in model container [2020-11-07 06:34:20,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:19" (2/3) ... [2020-11-07 06:34:20,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f89ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:34:20, skipping insertion in model container [2020-11-07 06:34:20,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:34:20" (3/3) ... [2020-11-07 06:34:20,208 INFO L111 eAbstractionObserver]: Analyzing ICFG ifeqn2f.c [2020-11-07 06:34:20,240 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:34:20,247 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:34:20,298 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:34:20,330 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:34:20,330 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:34:20,330 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:34:20,330 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:34:20,331 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:34:20,331 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:34:20,331 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:34:20,331 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:34:20,351 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-07 06:34:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-07 06:34:20,364 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:34:20,365 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 06:34:20,365 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:34:20,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:34:20,373 INFO L82 PathProgramCache]: Analyzing trace with hash 656538121, now seen corresponding path program 1 times [2020-11-07 06:34:20,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:34:20,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521592284] [2020-11-07 06:34:20,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:34:20,577 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-07 06:34:20,578 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-11-07 06:34:20,578 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 06:34:20,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:34:20,607 WARN L253 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-07 06:34:20,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:34:20 BoogieIcfgContainer [2020-11-07 06:34:20,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:34:20,611 INFO L168 Benchmark]: Toolchain (without parser) took 1246.55 ms. Allocated memory is still 160.4 MB. Free memory was 136.2 MB in the beginning and 132.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:34:20,613 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:34:20,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.64 ms. Allocated memory is still 160.4 MB. Free memory was 135.6 MB in the beginning and 125.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:34:20,616 INFO L168 Benchmark]: Boogie Preprocessor took 52.35 ms. Allocated memory is still 160.4 MB. Free memory was 125.7 MB in the beginning and 124.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 06:34:20,617 INFO L168 Benchmark]: RCFGBuilder took 499.50 ms. Allocated memory is still 160.4 MB. Free memory was 124.1 MB in the beginning and 104.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 06:34:20,618 INFO L168 Benchmark]: TraceAbstraction took 408.20 ms. Allocated memory is still 160.4 MB. Free memory was 104.2 MB in the beginning and 132.8 MB in the end (delta: -28.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:34:20,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 272.64 ms. Allocated memory is still 160.4 MB. Free memory was 135.6 MB in the beginning and 125.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.35 ms. Allocated memory is still 160.4 MB. Free memory was 125.7 MB in the beginning and 124.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 499.50 ms. Allocated memory is still 160.4 MB. Free memory was 124.1 MB in the beginning and 104.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 408.20 ms. Allocated memory is still 160.4 MB. Free memory was 104.2 MB in the beginning and 132.8 MB in the end (delta: -28.6 MB). There was no memory consumed. 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