/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/sina4f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:17:07,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:17:07,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:17:07,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:17:07,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:17:07,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:17:07,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:17:07,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:17:07,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:17:07,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:17:07,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:17:07,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:17:07,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:17:07,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:17:07,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:17:07,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:17:07,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:17:07,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:17:07,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:17:07,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:17:07,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:17:07,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:17:07,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:17:07,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:17:07,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:17:07,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:17:07,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:17:07,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:17:07,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:17:07,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:17:07,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:17:07,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:17:07,441 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:17:07,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:17:07,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:17:07,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:17:07,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:17:07,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:17:07,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:17:07,444 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:17:07,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:17:07,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:17:07,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:17:07,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:17:07,445 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:17:07,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:17:07,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:17:07,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:17:07,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:17:07,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:17:07,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:17:07,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:17:07,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:17:07,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:17:07,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:17:07,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:17:07,925 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:17:07,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina4f.c [2021-02-21 21:17:08,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5052885a6/dc7855b6c3ee4f1cad7d97ac70f8db96/FLAG2cd26f325 [2021-02-21 21:17:08,743 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:17:08,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina4f.c [2021-02-21 21:17:08,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5052885a6/dc7855b6c3ee4f1cad7d97ac70f8db96/FLAG2cd26f325 [2021-02-21 21:17:09,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5052885a6/dc7855b6c3ee4f1cad7d97ac70f8db96 [2021-02-21 21:17:09,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:17:09,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:17:09,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:17:09,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:17:09,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:17:09,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779b2473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09, skipping insertion in model container [2021-02-21 21:17:09,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:17:09,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:17:09,346 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/sina4f.c[589,602] [2021-02-21 21:17:09,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:17:09,380 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:17:09,395 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/sina4f.c[589,602] [2021-02-21 21:17:09,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:17:09,425 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:17:09,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09 WrapperNode [2021-02-21 21:17:09,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:17:09,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:17:09,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:17:09,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:17:09,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (1/1) ... [2021-02-21 21:17:09,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:17:09,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:17:09,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:17:09,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:17:09,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (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 [2021-02-21 21:17:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:17:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:17:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:17:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 21:17:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:17:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:17:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:17:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:17:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:17:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:17:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 21:17:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:17:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 21:17:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 21:17:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:17:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 21:17:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:17:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:17:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:17:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:17:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:17:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:17:10,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:17:10,244 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 21:17:10,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:17:10 BoogieIcfgContainer [2021-02-21 21:17:10,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:17:10,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:17:10,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:17:10,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:17:10,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:17:09" (1/3) ... [2021-02-21 21:17:10,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15917dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:17:10, skipping insertion in model container [2021-02-21 21:17:10,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:09" (2/3) ... [2021-02-21 21:17:10,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15917dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:17:10, skipping insertion in model container [2021-02-21 21:17:10,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:17:10" (3/3) ... [2021-02-21 21:17:10,258 INFO L111 eAbstractionObserver]: Analyzing ICFG sina4f.c [2021-02-21 21:17:10,266 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:17:10,271 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:17:10,291 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:17:10,326 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:17:10,326 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:17:10,327 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:17:10,327 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:17:10,327 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:17:10,327 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:17:10,327 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:17:10,327 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:17:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2021-02-21 21:17:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-21 21:17:10,355 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:17:10,356 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] [2021-02-21 21:17:10,357 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:17:10,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:17:10,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1103870, now seen corresponding path program 1 times [2021-02-21 21:17:10,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:17:10,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188755453] [2021-02-21 21:17:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:17:10,445 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:17:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:10,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:17:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:10,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:17:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:10,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:17:10,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188755453] [2021-02-21 21:17:10,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:17:10,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 21:17:10,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927794712] [2021-02-21 21:17:10,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 21:17:10,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:17:10,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 21:17:10,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 21:17:10,766 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2021-02-21 21:17:11,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:17:11,136 INFO L93 Difference]: Finished difference Result 151 states and 174 transitions. [2021-02-21 21:17:11,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 21:17:11,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2021-02-21 21:17:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:17:11,150 INFO L225 Difference]: With dead ends: 151 [2021-02-21 21:17:11,150 INFO L226 Difference]: Without dead ends: 77 [2021-02-21 21:17:11,155 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 [2021-02-21 21:17:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-02-21 21:17:11,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-02-21 21:17:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-02-21 21:17:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2021-02-21 21:17:11,217 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 44 [2021-02-21 21:17:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:17:11,218 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2021-02-21 21:17:11,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 21:17:11,219 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2021-02-21 21:17:11,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-21 21:17:11,221 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:17:11,221 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] [2021-02-21 21:17:11,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:17:11,222 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:17:11,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:17:11,223 INFO L82 PathProgramCache]: Analyzing trace with hash 564734934, now seen corresponding path program 1 times [2021-02-21 21:17:11,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:17:11,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65828663] [2021-02-21 21:17:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:17:11,228 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:17:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:11,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:11,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:11,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:11,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:17:11,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:11,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:17:11,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:11,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:11,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:17:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:11,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:11,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:17:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:11,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:11,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:17:11,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65828663] [2021-02-21 21:17:11,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:17:11,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 21:17:11,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017850972] [2021-02-21 21:17:11,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 21:17:11,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:17:11,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 21:17:11,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-21 21:17:11,458 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand 5 states. [2021-02-21 21:17:11,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:17:11,851 INFO L93 Difference]: Finished difference Result 151 states and 163 transitions. [2021-02-21 21:17:11,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 21:17:11,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2021-02-21 21:17:11,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:17:11,856 INFO L225 Difference]: With dead ends: 151 [2021-02-21 21:17:11,856 INFO L226 Difference]: Without dead ends: 109 [2021-02-21 21:17:11,858 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 [2021-02-21 21:17:11,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-02-21 21:17:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 81. [2021-02-21 21:17:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-02-21 21:17:11,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2021-02-21 21:17:11,883 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 44 [2021-02-21 21:17:11,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:17:11,883 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2021-02-21 21:17:11,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 21:17:11,884 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2021-02-21 21:17:11,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-02-21 21:17:11,886 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:17:11,887 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] [2021-02-21 21:17:11,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:17:11,887 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:17:11,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:17:11,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1978493271, now seen corresponding path program 1 times [2021-02-21 21:17:11,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:17:11,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793142038] [2021-02-21 21:17:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:17:11,918 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:17:11,921 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:17:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:17:11,996 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:17:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:17:12,075 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:17:12,122 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 21:17:12,122 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 21:17:12,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:17:12,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:17:12 BoogieIcfgContainer [2021-02-21 21:17:12,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:17:12,147 INFO L168 Benchmark]: Toolchain (without parser) took 3035.29 ms. Allocated memory was 152.0 MB in the beginning and 200.3 MB in the end (delta: 48.2 MB). Free memory was 129.0 MB in the beginning and 140.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 37.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:12,147 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 152.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:17:12,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.91 ms. Allocated memory is still 152.0 MB. Free memory was 127.9 MB in the beginning and 117.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:12,149 INFO L168 Benchmark]: Boogie Preprocessor took 56.52 ms. Allocated memory is still 152.0 MB. Free memory was 117.7 MB in the beginning and 116.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:12,150 INFO L168 Benchmark]: RCFGBuilder took 763.05 ms. Allocated memory is still 152.0 MB. Free memory was 115.9 MB in the beginning and 129.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:12,151 INFO L168 Benchmark]: TraceAbstraction took 1894.98 ms. Allocated memory was 152.0 MB in the beginning and 200.3 MB in the end (delta: 48.2 MB). Free memory was 129.1 MB in the beginning and 140.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:12,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 152.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 295.91 ms. Allocated memory is still 152.0 MB. Free memory was 127.9 MB in the beginning and 117.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.52 ms. Allocated memory is still 152.0 MB. Free memory was 117.7 MB in the beginning and 116.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 763.05 ms. Allocated memory is still 152.0 MB. Free memory was 115.9 MB in the beginning and 129.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1894.98 ms. Allocated memory was 152.0 MB in the beginning and 200.3 MB in the end (delta: 48.2 MB). Free memory was 129.1 MB in the beginning and 140.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 36.9 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