/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/sina5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:47:34,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:47:34,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:47:34,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 18:47:34,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 18:47:34,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 18:47:34,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 18:47:34,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 18:47:34,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 18:47:34,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 18:47:34,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 18:47:34,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 18:47:34,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:47:34,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:47:34,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:47:34,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:47:34,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:47:34,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:47:34,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:47:34,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:47:34,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:47:34,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:47:34,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:47:34,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:47:34,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:47:34,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:47:34,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:47:34,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:47:34,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:47:34,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:47:34,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:47:34,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:47:34,697 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:47:34,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:47:34,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:47:34,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:47:34,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:47:34,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:47:34,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:47:34,699 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:47:34,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:47:34,700 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:47:34,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:47:34,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:47:34,701 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:47:34,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:47:34,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:47:34,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:47:34,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:47:34,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:47:34,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:47:34,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:47:35,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:47:35,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:47:35,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:47:35,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:47:35,145 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:47:35,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina5f.c [2021-02-23 18:47:35,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cbaf14a8/f90603f8fd4f4831b64f6cb209dbc9d2/FLAG2da44ad98 [2021-02-23 18:47:35,793 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:47:35,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c [2021-02-23 18:47:35,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cbaf14a8/f90603f8fd4f4831b64f6cb209dbc9d2/FLAG2da44ad98 [2021-02-23 18:47:36,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cbaf14a8/f90603f8fd4f4831b64f6cb209dbc9d2 [2021-02-23 18:47:36,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:47:36,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:47:36,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:47:36,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:47:36,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:47:36,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383e9685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36, skipping insertion in model container [2021-02-23 18:47:36,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:47:36,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:47:36,354 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c[589,602] [2021-02-23 18:47:36,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:47:36,386 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:47:36,401 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c[589,602] [2021-02-23 18:47:36,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:47:36,430 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:47:36,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36 WrapperNode [2021-02-23 18:47:36,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:47:36,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:47:36,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:47:36,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:47:36,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (1/1) ... [2021-02-23 18:47:36,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:47:36,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:47:36,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:47:36,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:47:36,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (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 [2021-02-23 18:47:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:47:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:47:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:47:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-23 18:47:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 18:47:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:47:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:47:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:47:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:47:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:47:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-23 18:47:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 18:47:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:47:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 18:47:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:47:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 18:47:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:47:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:47:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:47:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:47:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:47:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:47:37,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:47:37,166 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-02-23 18:47:37,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:47:37 BoogieIcfgContainer [2021-02-23 18:47:37,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:47:37,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:47:37,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:47:37,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:47:37,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:47:36" (1/3) ... [2021-02-23 18:47:37,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6089114f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:47:37, skipping insertion in model container [2021-02-23 18:47:37,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:47:36" (2/3) ... [2021-02-23 18:47:37,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6089114f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:47:37, skipping insertion in model container [2021-02-23 18:47:37,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:47:37" (3/3) ... [2021-02-23 18:47:37,179 INFO L111 eAbstractionObserver]: Analyzing ICFG sina5f.c [2021-02-23 18:47:37,189 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:47:37,195 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:47:37,215 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:47:37,248 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:47:37,248 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:47:37,248 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:47:37,249 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:47:37,249 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:47:37,249 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:47:37,249 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:47:37,249 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:47:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2021-02-23 18:47:37,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-23 18:47:37,296 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:37,297 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] [2021-02-23 18:47:37,297 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:37,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:37,307 INFO L82 PathProgramCache]: Analyzing trace with hash 86213903, now seen corresponding path program 1 times [2021-02-23 18:47:37,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:37,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923203444] [2021-02-23 18:47:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:37,398 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:37,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:37,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:37,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:37,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:37,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:37,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:37,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:37,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-23 18:47:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:37,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:37,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:37,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923203444] [2021-02-23 18:47:37,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:37,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 18:47:37,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223502323] [2021-02-23 18:47:37,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 18:47:37,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:37,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 18:47:37,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:47:37,730 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2021-02-23 18:47:38,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:38,098 INFO L93 Difference]: Finished difference Result 167 states and 194 transitions. [2021-02-23 18:47:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 18:47:38,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2021-02-23 18:47:38,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:38,109 INFO L225 Difference]: With dead ends: 167 [2021-02-23 18:47:38,110 INFO L226 Difference]: Without dead ends: 85 [2021-02-23 18:47:38,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:47:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-02-23 18:47:38,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-02-23 18:47:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-02-23 18:47:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2021-02-23 18:47:38,167 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 46 [2021-02-23 18:47:38,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:38,168 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2021-02-23 18:47:38,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 18:47:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2021-02-23 18:47:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-23 18:47:38,171 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:38,171 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] [2021-02-23 18:47:38,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:47:38,172 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:38,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:38,173 INFO L82 PathProgramCache]: Analyzing trace with hash -218883754, now seen corresponding path program 1 times [2021-02-23 18:47:38,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:38,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322367177] [2021-02-23 18:47:38,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:38,184 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:38,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:38,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:38,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:38,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:47:38,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:38,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:47:38,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:38,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:38,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:38,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:38,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:38,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-23 18:47:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:38,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:38,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:38,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322367177] [2021-02-23 18:47:38,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:38,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 18:47:38,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469236086] [2021-02-23 18:47:38,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 18:47:38,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:38,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 18:47:38,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:47:38,415 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 5 states. [2021-02-23 18:47:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:38,910 INFO L93 Difference]: Finished difference Result 173 states and 188 transitions. [2021-02-23 18:47:38,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 18:47:38,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2021-02-23 18:47:38,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:38,918 INFO L225 Difference]: With dead ends: 173 [2021-02-23 18:47:38,918 INFO L226 Difference]: Without dead ends: 123 [2021-02-23 18:47:38,921 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 [2021-02-23 18:47:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-02-23 18:47:38,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 90. [2021-02-23 18:47:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-23 18:47:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2021-02-23 18:47:38,953 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 46 [2021-02-23 18:47:38,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:38,953 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2021-02-23 18:47:38,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 18:47:38,954 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2021-02-23 18:47:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-23 18:47:38,961 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:38,961 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, 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] [2021-02-23 18:47:38,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:47:38,961 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:38,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1032022828, now seen corresponding path program 1 times [2021-02-23 18:47:38,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:38,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344961146] [2021-02-23 18:47:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:38,989 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:38,991 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:47:39,067 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:47:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:47:39,130 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:47:39,205 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 18:47:39,205 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 18:47:39,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:47:39,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:47:39 BoogieIcfgContainer [2021-02-23 18:47:39,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:47:39,236 INFO L168 Benchmark]: Toolchain (without parser) took 3069.03 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 129.7 MB in the beginning and 124.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 37.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:47:39,237 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:47:39,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.73 ms. Allocated memory is still 153.1 MB. Free memory was 128.5 MB in the beginning and 117.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:47:39,238 INFO L168 Benchmark]: Boogie Preprocessor took 49.43 ms. Allocated memory is still 153.1 MB. Free memory was 117.8 MB in the beginning and 116.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:47:39,239 INFO L168 Benchmark]: RCFGBuilder took 685.81 ms. Allocated memory is still 153.1 MB. Free memory was 116.0 MB in the beginning and 133.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:47:39,242 INFO L168 Benchmark]: TraceAbstraction took 2062.72 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 133.8 MB in the beginning and 124.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 40.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:47:39,246 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 153.1 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 250.73 ms. Allocated memory is still 153.1 MB. Free memory was 128.5 MB in the beginning and 117.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.43 ms. Allocated memory is still 153.1 MB. Free memory was 117.8 MB in the beginning and 116.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 685.81 ms. Allocated memory is still 153.1 MB. Free memory was 116.0 MB in the beginning and 133.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2062.72 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 133.8 MB in the beginning and 124.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 40.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_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] long long *a = malloc(sizeof(long long)*N); [L30] long long *b = malloc(sizeof(long long)*N); [L32] sum[0] = 0 [L33] i=0 [L33] COND TRUE i