/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/s5iff.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 21:45:26,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 21:45:26,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 21:45:26,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 21:45:26,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 21:45:26,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 21:45:26,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 21:45:26,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 21:45:26,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 21:45:26,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 21:45:26,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 21:45:26,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 21:45:26,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 21:45:26,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 21:45:26,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 21:45:26,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 21:45:26,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 21:45:26,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 21:45:26,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 21:45:26,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 21:45:26,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 21:45:26,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 21:45:26,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 21:45:26,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 21:45:26,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 21:45:26,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 21:45:26,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 21:45:26,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 21:45:26,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 21:45:26,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 21:45:26,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 21:45:26,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 21:45:26,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 21:45:26,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 21:45:26,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 21:45:26,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 21:45:26,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 21:45:26,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 21:45:26,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 21:45:26,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 21:45:26,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 21:45:26,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 21:45:26,931 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 21:45:26,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 21:45:26,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 21:45:26,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 21:45:26,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 21:45:26,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 21:45:26,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 21:45:26,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 21:45:26,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 21:45:26,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 21:45:26,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 21:45:26,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 21:45:26,939 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 21:45:26,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 21:45:26,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 21:45:26,940 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 21:45:26,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 21:45:26,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 21:45:26,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 21:45:26,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 21:45:26,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 21:45:26,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 21:45:26,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 21:45:27,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 21:45:27,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 21:45:27,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 21:45:27,428 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 21:45:27,429 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 21:45:27,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s5iff.c [2020-10-23 21:45:27,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba9aa8ce/8c8acbda6a204048b6bdcdd84cb24fc3/FLAGbaf8ebf10 [2020-10-23 21:45:28,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 21:45:28,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s5iff.c [2020-10-23 21:45:28,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba9aa8ce/8c8acbda6a204048b6bdcdd84cb24fc3/FLAGbaf8ebf10 [2020-10-23 21:45:28,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba9aa8ce/8c8acbda6a204048b6bdcdd84cb24fc3 [2020-10-23 21:45:28,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 21:45:28,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 21:45:28,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 21:45:28,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 21:45:28,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 21:45:28,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:28,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4047c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28, skipping insertion in model container [2020-10-23 21:45:28,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:28,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 21:45:28,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 21:45:28,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:45:28,899 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 21:45:28,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:45:28,963 INFO L208 MainTranslator]: Completed translation [2020-10-23 21:45:28,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28 WrapperNode [2020-10-23 21:45:28,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 21:45:28,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 21:45:28,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 21:45:28,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 21:45:28,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:28,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:29,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:29,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:29,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:29,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:29,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (1/1) ... [2020-10-23 21:45:29,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 21:45:29,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 21:45:29,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 21:45:29,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 21:45:29,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (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 [2020-10-23 21:45:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 21:45:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 21:45:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 21:45:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 21:45:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 21:45:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 21:45:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 21:45:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 21:45:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 21:45:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 21:45:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 21:45:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 21:45:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 21:45:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 21:45:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 21:45:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 21:45:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 21:45:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 21:45:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 21:45:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 21:45:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 21:45:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 21:45:29,564 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 21:45:29,564 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 21:45:29,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:45:29 BoogieIcfgContainer [2020-10-23 21:45:29,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 21:45:29,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 21:45:29,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 21:45:29,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 21:45:29,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:45:28" (1/3) ... [2020-10-23 21:45:29,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e162f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:45:29, skipping insertion in model container [2020-10-23 21:45:29,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:28" (2/3) ... [2020-10-23 21:45:29,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e162f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:45:29, skipping insertion in model container [2020-10-23 21:45:29,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:45:29" (3/3) ... [2020-10-23 21:45:29,581 INFO L111 eAbstractionObserver]: Analyzing ICFG s5iff.c [2020-10-23 21:45:29,618 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 21:45:29,624 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 21:45:29,640 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 21:45:29,675 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 21:45:29,675 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 21:45:29,675 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 21:45:29,675 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 21:45:29,675 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 21:45:29,676 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 21:45:29,676 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 21:45:29,676 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 21:45:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-23 21:45:29,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-23 21:45:29,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:45:29,715 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] [2020-10-23 21:45:29,715 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:45:29,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:45:29,727 INFO L82 PathProgramCache]: Analyzing trace with hash -109308390, now seen corresponding path program 1 times [2020-10-23 21:45:29,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:45:29,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012540295] [2020-10-23 21:45:29,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:45:29,829 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:45:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:30,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:45:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:30,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 21:45:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:45:30,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012540295] [2020-10-23 21:45:30,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:45:30,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 21:45:30,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285252539] [2020-10-23 21:45:30,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 21:45:30,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:45:30,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 21:45:30,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 21:45:30,323 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-10-23 21:45:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:45:30,631 INFO L93 Difference]: Finished difference Result 148 states and 166 transitions. [2020-10-23 21:45:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 21:45:30,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-23 21:45:30,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:45:30,642 INFO L225 Difference]: With dead ends: 148 [2020-10-23 21:45:30,643 INFO L226 Difference]: Without dead ends: 80 [2020-10-23 21:45:30,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:45:30,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-23 21:45:30,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 61. [2020-10-23 21:45:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-23 21:45:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-10-23 21:45:30,709 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 37 [2020-10-23 21:45:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:45:30,709 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-10-23 21:45:30,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 21:45:30,710 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-10-23 21:45:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-23 21:45:30,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:45:30,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 21:45:30,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 21:45:30,713 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:45:30,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:45:30,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1788289630, now seen corresponding path program 1 times [2020-10-23 21:45:30,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:45:30,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122814655] [2020-10-23 21:45:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:45:30,820 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:45:30,822 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:45:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 21:45:30,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 21:45:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 21:45:30,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 21:45:31,035 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 21:45:31,035 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 21:45:31,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 21:45:31,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:45:31 BoogieIcfgContainer [2020-10-23 21:45:31,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 21:45:31,058 INFO L168 Benchmark]: Toolchain (without parser) took 2500.76 ms. Allocated memory is still 153.1 MB. Free memory was 128.9 MB in the beginning and 61.8 MB in the end (delta: 67.1 MB). Peak memory consumption was 68.0 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:31,059 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 82.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 21:45:31,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.91 ms. Allocated memory is still 153.1 MB. Free memory was 128.2 MB in the beginning and 118.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:31,061 INFO L168 Benchmark]: Boogie Preprocessor took 77.35 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 116.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:31,062 INFO L168 Benchmark]: RCFGBuilder took 523.14 ms. Allocated memory is still 153.1 MB. Free memory was 116.7 MB in the beginning and 97.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:31,063 INFO L168 Benchmark]: TraceAbstraction took 1484.89 ms. Allocated memory is still 153.1 MB. Free memory was 97.3 MB in the beginning and 61.8 MB in the end (delta: 35.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:31,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 82.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 392.91 ms. Allocated memory is still 153.1 MB. Free memory was 128.2 MB in the beginning and 118.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.35 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 116.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 523.14 ms. Allocated memory is still 153.1 MB. Free memory was 116.7 MB in the beginning and 97.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1484.89 ms. Allocated memory is still 153.1 MB. Free memory was 97.3 MB in the beginning and 61.8 MB in the end (delta: 35.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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 sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 [L32] COND TRUE i