/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/loop-invgen/nest-if3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 02:07:54,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 02:07:54,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 02:07:54,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 02:07:54,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 02:07:54,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 02:07:54,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 02:07:54,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 02:07:54,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 02:07:54,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 02:07:54,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 02:07:54,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 02:07:54,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 02:07:54,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 02:07:54,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 02:07:54,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 02:07:54,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 02:07:54,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 02:07:54,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 02:07:54,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 02:07:54,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 02:07:54,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 02:07:54,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 02:07:54,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 02:07:54,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 02:07:54,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 02:07:54,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 02:07:54,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 02:07:54,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 02:07:54,417 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 02:07:54,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 02:07:54,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 02:07:54,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 02:07:54,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 02:07:54,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 02:07:54,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 02:07:54,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 02:07:54,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 02:07:54,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 02:07:54,429 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 02:07:54,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 02:07:54,430 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 02:07:54,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 02:07:54,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 02:07:54,431 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 02:07:54,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 02:07:54,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 02:07:54,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 02:07:54,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 02:07:54,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 02:07:54,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 02:07:54,433 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 02:07:54,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 02:07:54,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 02:07:54,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 02:07:54,904 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 02:07:54,910 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 02:07:54,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-11-07 02:07:55,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3a1fffb/39deb5bdfcbd4ce69ae715a8e6af4d0c/FLAG878b14e81 [2020-11-07 02:07:55,793 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 02:07:55,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-11-07 02:07:55,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3a1fffb/39deb5bdfcbd4ce69ae715a8e6af4d0c/FLAG878b14e81 [2020-11-07 02:07:56,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3a1fffb/39deb5bdfcbd4ce69ae715a8e6af4d0c [2020-11-07 02:07:56,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 02:07:56,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 02:07:56,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 02:07:56,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 02:07:56,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 02:07:56,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529584ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56, skipping insertion in model container [2020-11-07 02:07:56,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 02:07:56,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 02:07:56,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:07:56,387 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 02:07:56,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:07:56,432 INFO L208 MainTranslator]: Completed translation [2020-11-07 02:07:56,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56 WrapperNode [2020-11-07 02:07:56,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 02:07:56,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 02:07:56,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 02:07:56,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 02:07:56,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... [2020-11-07 02:07:56,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 02:07:56,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 02:07:56,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 02:07:56,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 02:07:56,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 02:07:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 02:07:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 02:07:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 02:07:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 02:07:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 02:07:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 02:07:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 02:07:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 02:07:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 02:07:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 02:07:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 02:07:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 02:07:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 02:07:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 02:07:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 02:07:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 02:07:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 02:07:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 02:07:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 02:07:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 02:07:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 02:07:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 02:07:57,230 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 02:07:57,231 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 02:07:57,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:07:57 BoogieIcfgContainer [2020-11-07 02:07:57,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 02:07:57,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 02:07:57,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 02:07:57,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 02:07:57,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:07:56" (1/3) ... [2020-11-07 02:07:57,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527d828e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:07:57, skipping insertion in model container [2020-11-07 02:07:57,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:56" (2/3) ... [2020-11-07 02:07:57,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527d828e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:07:57, skipping insertion in model container [2020-11-07 02:07:57,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:07:57" (3/3) ... [2020-11-07 02:07:57,247 INFO L111 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2020-11-07 02:07:57,269 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 02:07:57,274 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 02:07:57,291 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 02:07:57,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 02:07:57,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 02:07:57,327 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 02:07:57,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 02:07:57,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 02:07:57,328 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 02:07:57,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 02:07:57,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 02:07:57,348 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-11-07 02:07:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-07 02:07:57,362 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:07:57,364 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] [2020-11-07 02:07:57,365 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:07:57,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:07:57,373 INFO L82 PathProgramCache]: Analyzing trace with hash 2069786466, now seen corresponding path program 1 times [2020-11-07 02:07:57,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:07:57,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466421407] [2020-11-07 02:07:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:07:57,488 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:07:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:07:57,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:07:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:07:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:07:57,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466421407] [2020-11-07 02:07:57,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:07:57,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 02:07:57,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045899489] [2020-11-07 02:07:57,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 02:07:57,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:07:57,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 02:07:57,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 02:07:57,876 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 7 states. [2020-11-07 02:07:58,570 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-11-07 02:07:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:07:58,962 INFO L93 Difference]: Finished difference Result 108 states and 132 transitions. [2020-11-07 02:07:58,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 02:07:58,965 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-11-07 02:07:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:07:58,976 INFO L225 Difference]: With dead ends: 108 [2020-11-07 02:07:58,977 INFO L226 Difference]: Without dead ends: 66 [2020-11-07 02:07:58,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-11-07 02:07:59,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-07 02:07:59,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-11-07 02:07:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-07 02:07:59,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2020-11-07 02:07:59,065 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 34 [2020-11-07 02:07:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:07:59,066 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2020-11-07 02:07:59,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 02:07:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2020-11-07 02:07:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-07 02:07:59,068 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:07:59,069 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:07:59,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 02:07:59,070 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:07:59,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:07:59,071 INFO L82 PathProgramCache]: Analyzing trace with hash -121822247, now seen corresponding path program 1 times [2020-11-07 02:07:59,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:07:59,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520599547] [2020-11-07 02:07:59,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:07:59,831 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-11-07 02:07:59,864 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation PRECISE [2020-11-07 02:07:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:08:00,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:08:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:08:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:08:00,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520599547] [2020-11-07 02:08:00,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:08:00,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 02:08:00,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108498832] [2020-11-07 02:08:00,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 02:08:00,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:08:00,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 02:08:00,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-11-07 02:08:00,618 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 13 states. [2020-11-07 02:08:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:08:02,086 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2020-11-07 02:08:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 02:08:02,088 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-11-07 02:08:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:08:02,089 INFO L225 Difference]: With dead ends: 72 [2020-11-07 02:08:02,091 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 02:08:02,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2020-11-07 02:08:02,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 02:08:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 02:08:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 02:08:02,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 02:08:02,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-11-07 02:08:02,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:08:02,098 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 02:08:02,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 02:08:02,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 02:08:02,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 02:08:02,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 02:08:02,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 02:08:02,872 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 17 [2020-11-07 02:08:03,077 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 17 [2020-11-07 02:08:03,305 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 17 [2020-11-07 02:08:03,830 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,831 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,832 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,832 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,832 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,833 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,833 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 02:08:03,833 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 02:08:03,834 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,835 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,835 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,835 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,835 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-11-07 02:08:03,836 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 02:08:03,836 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 02:08:03,837 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 02:08:03,837 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 02:08:03,838 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 02:08:03,838 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 02:08:03,838 INFO L266 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-11-07 02:08:03,838 INFO L266 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-11-07 02:08:03,839 INFO L266 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2020-11-07 02:08:03,839 INFO L266 CegarLoopResult]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2020-11-07 02:08:03,840 INFO L266 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2020-11-07 02:08:03,840 INFO L262 CegarLoopResult]: At program point L35-3(line 35) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,840 INFO L262 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (<= 1 main_~l~0) [2020-11-07 02:08:03,840 INFO L262 CegarLoopResult]: At program point L31-3(lines 31 37) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,840 INFO L269 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-11-07 02:08:03,841 INFO L262 CegarLoopResult]: At program point L31-4(line 31) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,842 INFO L269 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: true [2020-11-07 02:08:03,842 INFO L262 CegarLoopResult]: At program point L31-5(line 31) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,843 INFO L269 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: true [2020-11-07 02:08:03,844 INFO L262 CegarLoopResult]: At program point L31-6(lines 31 37) the Hoare annotation is: (<= 1 main_~l~0) [2020-11-07 02:08:03,844 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 24 38) the Hoare annotation is: true [2020-11-07 02:08:03,844 INFO L269 CegarLoopResult]: At program point L31-7(lines 24 38) the Hoare annotation is: true [2020-11-07 02:08:03,844 INFO L262 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,844 INFO L262 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (<= 1 main_~l~0) [2020-11-07 02:08:03,845 INFO L262 CegarLoopResult]: At program point L32-3(line 32) the Hoare annotation is: (and (exists ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (and (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0)) .cse0 (< v_main_~i~0_14 main_~n~0)))) (<= 1 main_~l~0) (<= 1 main_~i~0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |main_#t~post6| main_~i~0) (< main_~i~0 main_~n~0)) [2020-11-07 02:08:03,845 INFO L269 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-11-07 02:08:03,845 INFO L262 CegarLoopResult]: At program point L32-4(line 32) the Hoare annotation is: (and (exists ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (and (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0)) .cse0 (< v_main_~i~0_14 main_~n~0)))) (<= 1 main_~l~0) (<= 1 main_~i~0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= main_~i~0 (+ |main_#t~post6| 1))) [2020-11-07 02:08:03,846 INFO L269 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-11-07 02:08:03,846 INFO L262 CegarLoopResult]: At program point L32-5(lines 32 34) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,846 INFO L262 CegarLoopResult]: At program point L32-6(lines 32 34) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,846 INFO L262 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0) (< main_~i~0 main_~n~0)) [2020-11-07 02:08:03,847 INFO L262 CegarLoopResult]: At program point L33-1(lines 32 34) the Hoare annotation is: (and (exists ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (and (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0)) .cse0 (< v_main_~i~0_14 main_~n~0)))) (<= 1 main_~l~0) (<= 1 main_~i~0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (< main_~i~0 main_~n~0)) [2020-11-07 02:08:03,847 INFO L262 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= 1 main_~l~0) [2020-11-07 02:08:03,847 INFO L262 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (<= 1 main_~l~0) [2020-11-07 02:08:03,847 INFO L269 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-11-07 02:08:03,848 INFO L269 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-11-07 02:08:03,848 INFO L269 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true [2020-11-07 02:08:03,848 INFO L262 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (<= 1 main_~l~0) [2020-11-07 02:08:03,848 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 24 38) the Hoare annotation is: true [2020-11-07 02:08:03,848 INFO L262 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (<= 1 main_~l~0) [2020-11-07 02:08:03,849 INFO L269 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-11-07 02:08:03,849 INFO L269 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-11-07 02:08:03,849 INFO L269 CegarLoopResult]: At program point L26-2(line 26) the Hoare annotation is: true [2020-11-07 02:08:03,849 INFO L262 CegarLoopResult]: At program point L35(lines 35 36) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,850 INFO L262 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-11-07 02:08:03,850 INFO L262 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: (or (forall ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (or (not .cse0) (not (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0))) (not (< v_main_~i~0_14 main_~n~0))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2020-11-07 02:08:03,850 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2020-11-07 02:08:03,850 INFO L262 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (or (forall ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (or (not .cse0) (not (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0))) (not (< v_main_~i~0_14 main_~n~0))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2020-11-07 02:08:03,851 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (forall ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (or (not .cse0) (not (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0))) (not (< v_main_~i~0_14 main_~n~0))))) [2020-11-07 02:08:03,851 INFO L262 CegarLoopResult]: At program point L18(lines 18 20) the Hoare annotation is: (or (forall ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (or (not .cse0) (not (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0))) (not (< v_main_~i~0_14 main_~n~0))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2020-11-07 02:08:03,851 INFO L262 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (forall ((v_main_~i~0_14 Int)) (let ((.cse0 (<= 1 v_main_~i~0_14))) (or (not .cse0) (not (= |__VERIFIER_assert_#in~cond| (ite .cse0 1 0))) (not (< v_main_~i~0_14 main_~n~0))))) [2020-11-07 02:08:03,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,875 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,875 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:08:03 BoogieIcfgContainer [2020-11-07 02:08:03,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 02:08:03,880 INFO L168 Benchmark]: Toolchain (without parser) took 7771.74 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 129.9 MB in the beginning and 118.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 104.7 MB. Max. memory is 8.0 GB. [2020-11-07 02:08:03,881 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 153.1 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 02:08:03,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.78 ms. Allocated memory is still 153.1 MB. Free memory was 129.2 MB in the beginning and 119.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 02:08:03,884 INFO L168 Benchmark]: Boogie Preprocessor took 50.22 ms. Allocated memory is still 153.1 MB. Free memory was 119.4 MB in the beginning and 117.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 02:08:03,885 INFO L168 Benchmark]: RCFGBuilder took 748.73 ms. Allocated memory is still 153.1 MB. Free memory was 117.9 MB in the beginning and 131.6 MB in the end (delta: -13.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. [2020-11-07 02:08:03,886 INFO L168 Benchmark]: TraceAbstraction took 6641.81 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 131.6 MB in the beginning and 118.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 105.4 MB. Max. memory is 8.0 GB. [2020-11-07 02:08:03,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 153.1 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 316.78 ms. Allocated memory is still 153.1 MB. Free memory was 129.2 MB in the beginning and 119.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.22 ms. Allocated memory is still 153.1 MB. Free memory was 119.4 MB in the beginning and 117.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 748.73 ms. Allocated memory is still 153.1 MB. Free memory was 117.9 MB in the beginning and 131.6 MB in the end (delta: -13.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6641.81 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 131.6 MB in the beginning and 118.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 105.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 <= l && 1 <= i - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 <= l - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert [2020-11-07 02:08:03,902 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] [2020-11-07 02:08:03,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_14,QUANTIFIED] Derived contract for procedure __VERIFIER_assert: (forall v_main_~i~0_14 : int :: (!(1 <= v_main_~i~0_14) || !(\old(cond) == (if 1 <= v_main_~i~0_14 then 1 else 0))) || !(v_main_~i~0_14 < n)) || \old(cond) == cond - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 103 SDtfs, 225 SDslu, 143 SDs, 0 SdLazy, 466 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 59 LocationsWithAnnotation, 83 PreInvPairs, 126 NumberOfFragments, 351 HoareAnnotationTreeSize, 83 FomulaSimplifications, 2237 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 59 FomulaSimplificationsInter, 1772 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...