/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/sina3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:17:06,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:17:06,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:17:06,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:17:06,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:17:06,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:17:06,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:17:06,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:17:06,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:17:06,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:17:06,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:17:06,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:17:06,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:17:06,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:17:06,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:17:06,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:17:06,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:17:06,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:17:06,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:17:06,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:17:06,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:17:06,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:17:06,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:17:06,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:17:06,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:17:06,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:17:06,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:17:06,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:17:06,358 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 21:17:06,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:17:06,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:17:06,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:17:06,383 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:17:06,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:17:06,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:17:06,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:17:06,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:17:06,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:17:06,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:17:06,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:17:06,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:17:06,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:17:06,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:17:06,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:17:06,386 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:17:06,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:17:06,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:17:06,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:17:06,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:17:06,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:17:06,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:17:06,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:17:06,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:17:06,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:17:06,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:17:06,815 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:17:06,816 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:17:06,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3f.c [2021-02-21 21:17:06,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e69508dd3/902396b399784f8785ac7baac411df3e/FLAG6324dd62b [2021-02-21 21:17:07,536 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:17:07,536 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina3f.c [2021-02-21 21:17:07,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e69508dd3/902396b399784f8785ac7baac411df3e/FLAG6324dd62b [2021-02-21 21:17:07,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e69508dd3/902396b399784f8785ac7baac411df3e [2021-02-21 21:17:07,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:17:07,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:17:07,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:17:07,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:17:07,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:17:07,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:17:07" (1/1) ... [2021-02-21 21:17:07,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447becd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:07, skipping insertion in model container [2021-02-21 21:17:07,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:17:07" (1/1) ... [2021-02-21 21:17:07,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:17:07,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:17:08,136 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/sina3f.c[589,602] [2021-02-21 21:17:08,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:17:08,173 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:17:08,188 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/sina3f.c[589,602] [2021-02-21 21:17:08,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:17:08,217 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:17:08,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08 WrapperNode [2021-02-21 21:17:08,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:17:08,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:17:08,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:17:08,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:17:08,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (1/1) ... [2021-02-21 21:17:08,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (1/1) ... [2021-02-21 21:17:08,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (1/1) ... [2021-02-21 21:17:08,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (1/1) ... [2021-02-21 21:17:08,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (1/1) ... [2021-02-21 21:17:08,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (1/1) ... [2021-02-21 21:17:08,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (1/1) ... [2021-02-21 21:17:08,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:17:08,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:17:08,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:17:08,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:17:08,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (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 21:17:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:17:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:17:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:17:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 21:17:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:17:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:17:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:17:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:17:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:17:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:17:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 21:17:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:17:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 21:17:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 21:17:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:17:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 21:17:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:17:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:17:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:17:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:17:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:17:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:17:08,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:17:08,947 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 21:17:08,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:17:08 BoogieIcfgContainer [2021-02-21 21:17:08,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:17:08,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:17:08,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:17:08,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:17:08,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:17:07" (1/3) ... [2021-02-21 21:17:08,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736d7ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:17:08, skipping insertion in model container [2021-02-21 21:17:08,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:17:08" (2/3) ... [2021-02-21 21:17:08,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736d7ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:17:08, skipping insertion in model container [2021-02-21 21:17:08,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:17:08" (3/3) ... [2021-02-21 21:17:08,959 INFO L111 eAbstractionObserver]: Analyzing ICFG sina3f.c [2021-02-21 21:17:08,967 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:17:08,973 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:17:08,994 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:17:09,022 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:17:09,022 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:17:09,022 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:17:09,022 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:17:09,023 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:17:09,023 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:17:09,023 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:17:09,023 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:17:09,040 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2021-02-21 21:17:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-21 21:17:09,052 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:17:09,053 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 21:17:09,053 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:17:09,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:17:09,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1729300024, now seen corresponding path program 1 times [2021-02-21 21:17:09,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:17:09,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053839757] [2021-02-21 21:17:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:17:09,149 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:17:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:09,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:09,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:09,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:09,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:09,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:17:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:09,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:09,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:09,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:17:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:09,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:09,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:09,541 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 21:17:09,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053839757] [2021-02-21 21:17:09,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:17:09,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 21:17:09,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032509625] [2021-02-21 21:17:09,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 21:17:09,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:17:09,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 21:17:09,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 21:17:09,574 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2021-02-21 21:17:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:17:10,027 INFO L93 Difference]: Finished difference Result 147 states and 170 transitions. [2021-02-21 21:17:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 21:17:10,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2021-02-21 21:17:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:17:10,044 INFO L225 Difference]: With dead ends: 147 [2021-02-21 21:17:10,044 INFO L226 Difference]: Without dead ends: 75 [2021-02-21 21:17:10,048 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 21:17:10,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-02-21 21:17:10,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-02-21 21:17:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-02-21 21:17:10,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2021-02-21 21:17:10,105 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 44 [2021-02-21 21:17:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:17:10,106 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-02-21 21:17:10,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 21:17:10,106 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2021-02-21 21:17:10,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-21 21:17:10,108 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:17:10,108 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 21:17:10,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:17:10,109 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:17:10,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:17:10,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1192689582, now seen corresponding path program 1 times [2021-02-21 21:17:10,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:17:10,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298409274] [2021-02-21 21:17:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:17:10,113 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:17:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:10,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:17:10,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:17:10,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:17:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:10,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:17:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:17:10,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:17:10,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:17:10,294 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 21:17:10,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298409274] [2021-02-21 21:17:10,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:17:10,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 21:17:10,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317548257] [2021-02-21 21:17:10,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 21:17:10,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:17:10,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 21:17:10,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-21 21:17:10,298 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 5 states. [2021-02-21 21:17:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:17:10,796 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2021-02-21 21:17:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 21:17:10,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2021-02-21 21:17:10,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:17:10,801 INFO L225 Difference]: With dead ends: 145 [2021-02-21 21:17:10,801 INFO L226 Difference]: Without dead ends: 105 [2021-02-21 21:17:10,803 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 21:17:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-02-21 21:17:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 79. [2021-02-21 21:17:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-02-21 21:17:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2021-02-21 21:17:10,826 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 44 [2021-02-21 21:17:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:17:10,827 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2021-02-21 21:17:10,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 21:17:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2021-02-21 21:17:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-21 21:17:10,830 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:17:10,830 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] [2021-02-21 21:17:10,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:17:10,831 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:17:10,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:17:10,832 INFO L82 PathProgramCache]: Analyzing trace with hash -217676284, now seen corresponding path program 1 times [2021-02-21 21:17:10,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:17:10,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965316657] [2021-02-21 21:17:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:17:10,860 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:17:10,863 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:17:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:17:10,931 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:17:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:17:11,005 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:17:11,078 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 21:17:11,078 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 21:17:11,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:17:11,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:17:11 BoogieIcfgContainer [2021-02-21 21:17:11,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:17:11,111 INFO L168 Benchmark]: Toolchain (without parser) took 3227.21 ms. Allocated memory is still 152.0 MB. Free memory was 128.4 MB in the beginning and 58.3 MB in the end (delta: 70.1 MB). Peak memory consumption was 71.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:11,112 INFO L168 Benchmark]: CDTParser took 0.25 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 21:17:11,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.83 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 117.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:11,115 INFO L168 Benchmark]: Boogie Preprocessor took 47.31 ms. Allocated memory is still 152.0 MB. Free memory was 117.1 MB in the beginning and 115.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:11,116 INFO L168 Benchmark]: RCFGBuilder took 682.21 ms. Allocated memory is still 152.0 MB. Free memory was 115.4 MB in the beginning and 125.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:11,117 INFO L168 Benchmark]: TraceAbstraction took 2156.84 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 58.3 MB in the end (delta: 66.4 MB). Peak memory consumption was 68.0 MB. Max. memory is 8.0 GB. [2021-02-21 21:17:11,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 319.83 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 117.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.31 ms. Allocated memory is still 152.0 MB. Free memory was 117.1 MB in the beginning and 115.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 682.21 ms. Allocated memory is still 152.0 MB. Free memory was 115.4 MB in the beginning and 125.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2156.84 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 58.3 MB in the end (delta: 66.4 MB). Peak memory consumption was 68.0 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] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 1 [L33] i=0 [L33] COND TRUE i