/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/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 01:57:12,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 01:57:12,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 01:57:12,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 01:57:12,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 01:57:12,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 01:57:12,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 01:57:12,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 01:57:12,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 01:57:12,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 01:57:13,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 01:57:13,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 01:57:13,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 01:57:13,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 01:57:13,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 01:57:13,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 01:57:13,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 01:57:13,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 01:57:13,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 01:57:13,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 01:57:13,037 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 01:57:13,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 01:57:13,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 01:57:13,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 01:57:13,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 01:57:13,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 01:57:13,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 01:57:13,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 01:57:13,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 01:57:13,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 01:57:13,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 01:57:13,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 01:57:13,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 01:57:13,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 01:57:13,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 01:57:13,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 01:57:13,054 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 01:57:13,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 01:57:13,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 01:57:13,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:57:13,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 01:57:13,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 01:57:13,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 01:57:13,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 01:57:13,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 01:57:13,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 01:57:13,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 01:57:13,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 01:57:13,480 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 01:57:13,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2020-11-07 01:57:13,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153d92031/dc73fec70652420b8aa2a2807bb6ffc3/FLAG6df49255b [2020-11-07 01:57:14,229 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 01:57:14,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2020-11-07 01:57:14,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153d92031/dc73fec70652420b8aa2a2807bb6ffc3/FLAG6df49255b [2020-11-07 01:57:14,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153d92031/dc73fec70652420b8aa2a2807bb6ffc3 [2020-11-07 01:57:14,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 01:57:14,578 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 01:57:14,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 01:57:14,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 01:57:14,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 01:57:14,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f00e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14, skipping insertion in model container [2020-11-07 01:57:14,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 01:57:14,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 01:57:14,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:57:14,832 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 01:57:14,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:57:14,891 INFO L208 MainTranslator]: Completed translation [2020-11-07 01:57:14,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14 WrapperNode [2020-11-07 01:57:14,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 01:57:14,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 01:57:14,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 01:57:14,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 01:57:14,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (1/1) ... [2020-11-07 01:57:14,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 01:57:14,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 01:57:14,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 01:57:14,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 01:57:14,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (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 01:57:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 01:57:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 01:57:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 01:57:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 01:57:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2020-11-07 01:57:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 01:57:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2020-11-07 01:57:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 01:57:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 01:57:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 01:57:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 01:57:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 01:57:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2020-11-07 01:57:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2020-11-07 01:57:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 01:57:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 01:57:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 01:57:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 01:57:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 01:57:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 01:57:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 01:57:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 01:57:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 01:57:15,725 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 01:57:15,727 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-07 01:57:15,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:15 BoogieIcfgContainer [2020-11-07 01:57:15,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 01:57:15,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 01:57:15,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 01:57:15,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 01:57:15,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:57:14" (1/3) ... [2020-11-07 01:57:15,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299b96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:15, skipping insertion in model container [2020-11-07 01:57:15,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:14" (2/3) ... [2020-11-07 01:57:15,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299b96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:15, skipping insertion in model container [2020-11-07 01:57:15,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:15" (3/3) ... [2020-11-07 01:57:15,738 INFO L111 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2020-11-07 01:57:15,755 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 01:57:15,759 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 01:57:15,772 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 01:57:15,811 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 01:57:15,811 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 01:57:15,811 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 01:57:15,811 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 01:57:15,812 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 01:57:15,812 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 01:57:15,812 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 01:57:15,812 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 01:57:15,846 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2020-11-07 01:57:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-07 01:57:15,862 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:15,863 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] [2020-11-07 01:57:15,864 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:15,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1617994579, now seen corresponding path program 1 times [2020-11-07 01:57:15,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:15,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100537746] [2020-11-07 01:57:15,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:15,981 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:16,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:16,336 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 01:57:16,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100537746] [2020-11-07 01:57:16,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:16,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 01:57:16,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906845772] [2020-11-07 01:57:16,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 01:57:16,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:16,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 01:57:16,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 01:57:16,371 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 3 states. [2020-11-07 01:57:16,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:16,898 INFO L93 Difference]: Finished difference Result 368 states and 433 transitions. [2020-11-07 01:57:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 01:57:16,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-11-07 01:57:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:16,911 INFO L225 Difference]: With dead ends: 368 [2020-11-07 01:57:16,911 INFO L226 Difference]: Without dead ends: 61 [2020-11-07 01:57:16,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 01:57:16,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-07 01:57:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2020-11-07 01:57:16,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-07 01:57:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-11-07 01:57:16,973 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 36 [2020-11-07 01:57:16,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:16,974 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-11-07 01:57:16,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 01:57:16,974 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-11-07 01:57:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-07 01:57:16,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:16,976 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] [2020-11-07 01:57:16,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 01:57:16,976 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash 2075760546, now seen corresponding path program 1 times [2020-11-07 01:57:16,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:16,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754096407] [2020-11-07 01:57:16,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:16,981 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:17,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:17,159 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 01:57:17,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754096407] [2020-11-07 01:57:17,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:17,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 01:57:17,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250842985] [2020-11-07 01:57:17,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 01:57:17,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:17,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 01:57:17,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 01:57:17,163 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 5 states. [2020-11-07 01:57:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:17,432 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2020-11-07 01:57:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 01:57:17,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-11-07 01:57:17,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:17,434 INFO L225 Difference]: With dead ends: 97 [2020-11-07 01:57:17,435 INFO L226 Difference]: Without dead ends: 70 [2020-11-07 01:57:17,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 01:57:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-07 01:57:17,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 55. [2020-11-07 01:57:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-07 01:57:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-11-07 01:57:17,452 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 36 [2020-11-07 01:57:17,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:17,452 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-11-07 01:57:17,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 01:57:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-11-07 01:57:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-07 01:57:17,454 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:17,454 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] [2020-11-07 01:57:17,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 01:57:17,455 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:17,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:17,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1735066646, now seen corresponding path program 1 times [2020-11-07 01:57:17,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:17,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378101807] [2020-11-07 01:57:17,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:17,544 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:57:17,546 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:17,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:17,692 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 01:57:17,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378101807] [2020-11-07 01:57:17,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:17,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 01:57:17,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189038526] [2020-11-07 01:57:17,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 01:57:17,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:17,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 01:57:17,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 01:57:17,695 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 5 states. [2020-11-07 01:57:17,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:17,941 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2020-11-07 01:57:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 01:57:17,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-11-07 01:57:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:17,944 INFO L225 Difference]: With dead ends: 110 [2020-11-07 01:57:17,944 INFO L226 Difference]: Without dead ends: 82 [2020-11-07 01:57:17,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 01:57:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-07 01:57:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 61. [2020-11-07 01:57:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-07 01:57:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-11-07 01:57:17,960 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 45 [2020-11-07 01:57:17,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:17,961 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-11-07 01:57:17,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 01:57:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-11-07 01:57:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-07 01:57:17,963 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:17,963 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] [2020-11-07 01:57:17,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 01:57:17,963 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:17,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:17,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1387337385, now seen corresponding path program 1 times [2020-11-07 01:57:17,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:17,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813965280] [2020-11-07 01:57:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:18,030 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-07 01:57:18,044 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:57:18,045 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:18,046 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:88, output treesize:59 [2020-11-07 01:57:18,061 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:57:18,063 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:18,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:18,216 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 01:57:18,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813965280] [2020-11-07 01:57:18,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:18,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 01:57:18,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640303802] [2020-11-07 01:57:18,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 01:57:18,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:18,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 01:57:18,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 01:57:18,219 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-11-07 01:57:18,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:18,599 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2020-11-07 01:57:18,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 01:57:18,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-11-07 01:57:18,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:18,601 INFO L225 Difference]: With dead ends: 84 [2020-11-07 01:57:18,601 INFO L226 Difference]: Without dead ends: 81 [2020-11-07 01:57:18,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-07 01:57:18,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-11-07 01:57:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2020-11-07 01:57:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-07 01:57:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2020-11-07 01:57:18,620 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 48 [2020-11-07 01:57:18,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:18,620 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2020-11-07 01:57:18,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 01:57:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2020-11-07 01:57:18,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-11-07 01:57:18,622 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:18,622 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2020-11-07 01:57:18,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 01:57:18,623 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:18,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:18,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1258713198, now seen corresponding path program 1 times [2020-11-07 01:57:18,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:18,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161922781] [2020-11-07 01:57:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:18,777 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-11-07 01:57:18,814 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:18,820 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:18,913 INFO L625 ElimStorePlain]: treesize reduction 156, result has 48.7 percent of original size [2020-11-07 01:57:18,918 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:18,943 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:57:18,945 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:18,946 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:302, output treesize:139 [2020-11-07 01:57:18,974 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:57:18,976 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:19,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:19,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-11-07 01:57:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:19,144 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 01:57:19,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161922781] [2020-11-07 01:57:19,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:19,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 01:57:19,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770242731] [2020-11-07 01:57:19,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 01:57:19,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:19,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 01:57:19,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-07 01:57:19,147 INFO L87 Difference]: Start difference. First operand 78 states and 82 transitions. Second operand 8 states. [2020-11-07 01:57:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:19,581 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2020-11-07 01:57:19,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 01:57:19,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-11-07 01:57:19,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:19,584 INFO L225 Difference]: With dead ends: 109 [2020-11-07 01:57:19,584 INFO L226 Difference]: Without dead ends: 106 [2020-11-07 01:57:19,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-11-07 01:57:19,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-11-07 01:57:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2020-11-07 01:57:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-07 01:57:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 109 transitions. [2020-11-07 01:57:19,621 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 109 transitions. Word has length 70 [2020-11-07 01:57:19,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:19,624 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 109 transitions. [2020-11-07 01:57:19,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 01:57:19,624 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 109 transitions. [2020-11-07 01:57:19,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-07 01:57:19,628 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:19,628 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-11-07 01:57:19,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 01:57:19,629 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:19,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:19,630 INFO L82 PathProgramCache]: Analyzing trace with hash 2017231803, now seen corresponding path program 2 times [2020-11-07 01:57:19,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:19,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427421238] [2020-11-07 01:57:19,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:19,763 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-07 01:57:19,779 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:19,784 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:19,881 INFO L625 ElimStorePlain]: treesize reduction 123, result has 48.3 percent of original size [2020-11-07 01:57:19,883 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:19,884 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:236, output treesize:115 [2020-11-07 01:57:20,106 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-11-07 01:57:20,133 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:20,139 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:20,249 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-07 01:57:20,251 INFO L625 ElimStorePlain]: treesize reduction 144, result has 48.6 percent of original size [2020-11-07 01:57:20,255 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-07 01:57:20,291 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:57:20,293 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-07 01:57:20,293 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:278, output treesize:113 [2020-11-07 01:57:20,324 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:57:20,326 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:20,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-11-07 01:57:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-11-07 01:57:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:20,489 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 01:57:20,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427421238] [2020-11-07 01:57:20,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:20,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 01:57:20,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240246452] [2020-11-07 01:57:20,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 01:57:20,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:20,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 01:57:20,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 01:57:20,493 INFO L87 Difference]: Start difference. First operand 103 states and 109 transitions. Second operand 7 states. [2020-11-07 01:57:20,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:20,880 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2020-11-07 01:57:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 01:57:20,881 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-11-07 01:57:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:20,883 INFO L225 Difference]: With dead ends: 103 [2020-11-07 01:57:20,884 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 01:57:20,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-11-07 01:57:20,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 01:57:20,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 01:57:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 01:57:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 01:57:20,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2020-11-07 01:57:20,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:20,887 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 01:57:20,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 01:57:20,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 01:57:20,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 01:57:20,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 01:57:20,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 01:57:22,368 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,369 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,369 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,369 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,369 INFO L269 CegarLoopResult]: At program point L151(line 151) the Hoare annotation is: true [2020-11-07 01:57:22,370 INFO L269 CegarLoopResult]: At program point L118(line 118) the Hoare annotation is: true [2020-11-07 01:57:22,370 INFO L269 CegarLoopResult]: At program point L151-1(line 151) the Hoare annotation is: true [2020-11-07 01:57:22,370 INFO L269 CegarLoopResult]: At program point L118-3(lines 118 136) the Hoare annotation is: true [2020-11-07 01:57:22,370 INFO L269 CegarLoopResult]: At program point L118-4(line 118) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point L118-5(line 118) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point L118-6(lines 118 136) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point L118-7(lines 118 136) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point L120-1(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point L120-2(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point L120-3(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,371 INFO L269 CegarLoopResult]: At program point ludcmpEXIT(lines 111 155) the Hoare annotation is: true [2020-11-07 01:57:22,372 INFO L269 CegarLoopResult]: At program point L120-4(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,372 INFO L269 CegarLoopResult]: At program point L120-5(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,372 INFO L269 CegarLoopResult]: At program point L120-6(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,372 INFO L269 CegarLoopResult]: At program point L120-7(line 120) the Hoare annotation is: true [2020-11-07 01:57:22,372 INFO L269 CegarLoopResult]: At program point L137(line 137) the Hoare annotation is: true [2020-11-07 01:57:22,372 INFO L269 CegarLoopResult]: At program point L137-1(line 137) the Hoare annotation is: true [2020-11-07 01:57:22,373 INFO L262 CegarLoopResult]: At program point ludcmpENTRY(lines 111 155) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,373 INFO L269 CegarLoopResult]: At program point L121(line 121) the Hoare annotation is: true [2020-11-07 01:57:22,373 INFO L269 CegarLoopResult]: At program point L121-3(lines 121 128) the Hoare annotation is: true [2020-11-07 01:57:22,373 INFO L269 CegarLoopResult]: At program point L121-4(line 121) the Hoare annotation is: true [2020-11-07 01:57:22,373 INFO L269 CegarLoopResult]: At program point L121-5(line 121) the Hoare annotation is: true [2020-11-07 01:57:22,373 INFO L269 CegarLoopResult]: At program point L121-6(lines 121 128) the Hoare annotation is: true [2020-11-07 01:57:22,373 INFO L269 CegarLoopResult]: At program point L121-7(lines 121 128) the Hoare annotation is: true [2020-11-07 01:57:22,373 INFO L269 CegarLoopResult]: At program point L138(line 138) the Hoare annotation is: true [2020-11-07 01:57:22,374 INFO L269 CegarLoopResult]: At program point L138-3(line 138) the Hoare annotation is: true [2020-11-07 01:57:22,374 INFO L269 CegarLoopResult]: At program point L138-4(line 138) the Hoare annotation is: true [2020-11-07 01:57:22,374 INFO L269 CegarLoopResult]: At program point L138-5(lines 138 144) the Hoare annotation is: true [2020-11-07 01:57:22,374 INFO L269 CegarLoopResult]: At program point L138-6(lines 138 144) the Hoare annotation is: true [2020-11-07 01:57:22,374 INFO L269 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: true [2020-11-07 01:57:22,374 INFO L269 CegarLoopResult]: At program point L123-1(line 123) the Hoare annotation is: true [2020-11-07 01:57:22,374 INFO L269 CegarLoopResult]: At program point L123-2(line 123) the Hoare annotation is: true [2020-11-07 01:57:22,375 INFO L269 CegarLoopResult]: At program point L140(line 140) the Hoare annotation is: true [2020-11-07 01:57:22,375 INFO L269 CegarLoopResult]: At program point L140-1(line 140) the Hoare annotation is: true [2020-11-07 01:57:22,375 INFO L269 CegarLoopResult]: At program point L140-2(line 140) the Hoare annotation is: true [2020-11-07 01:57:22,375 INFO L269 CegarLoopResult]: At program point L124(lines 124 126) the Hoare annotation is: true [2020-11-07 01:57:22,375 INFO L269 CegarLoopResult]: At program point L124-1(lines 124 126) the Hoare annotation is: true [2020-11-07 01:57:22,375 INFO L269 CegarLoopResult]: At program point L141(line 141) the Hoare annotation is: true [2020-11-07 01:57:22,375 INFO L269 CegarLoopResult]: At program point L141-3(lines 141 142) the Hoare annotation is: true [2020-11-07 01:57:22,376 INFO L269 CegarLoopResult]: At program point L141-4(line 141) the Hoare annotation is: true [2020-11-07 01:57:22,376 INFO L269 CegarLoopResult]: At program point L141-5(line 141) the Hoare annotation is: true [2020-11-07 01:57:22,376 INFO L269 CegarLoopResult]: At program point L141-6(lines 141 142) the Hoare annotation is: true [2020-11-07 01:57:22,376 INFO L269 CegarLoopResult]: At program point L141-7(lines 141 142) the Hoare annotation is: true [2020-11-07 01:57:22,376 INFO L269 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: true [2020-11-07 01:57:22,376 INFO L269 CegarLoopResult]: At program point L125-3(lines 125 126) the Hoare annotation is: true [2020-11-07 01:57:22,377 INFO L269 CegarLoopResult]: At program point L125-4(line 125) the Hoare annotation is: true [2020-11-07 01:57:22,377 INFO L269 CegarLoopResult]: At program point L125-5(line 125) the Hoare annotation is: true [2020-11-07 01:57:22,377 INFO L269 CegarLoopResult]: At program point L125-6(lines 125 126) the Hoare annotation is: true [2020-11-07 01:57:22,377 INFO L269 CegarLoopResult]: At program point L142(line 142) the Hoare annotation is: true [2020-11-07 01:57:22,377 INFO L269 CegarLoopResult]: At program point L142-1(line 142) the Hoare annotation is: true [2020-11-07 01:57:22,377 INFO L269 CegarLoopResult]: At program point L142-2(line 142) the Hoare annotation is: true [2020-11-07 01:57:22,377 INFO L269 CegarLoopResult]: At program point L142-3(line 142) the Hoare annotation is: true [2020-11-07 01:57:22,378 INFO L269 CegarLoopResult]: At program point L142-4(line 142) the Hoare annotation is: true [2020-11-07 01:57:22,378 INFO L269 CegarLoopResult]: At program point L126(line 126) the Hoare annotation is: true [2020-11-07 01:57:22,378 INFO L269 CegarLoopResult]: At program point L126-1(line 126) the Hoare annotation is: true [2020-11-07 01:57:22,378 INFO L269 CegarLoopResult]: At program point L126-2(line 126) the Hoare annotation is: true [2020-11-07 01:57:22,378 INFO L269 CegarLoopResult]: At program point L126-3(line 126) the Hoare annotation is: true [2020-11-07 01:57:22,378 INFO L269 CegarLoopResult]: At program point L126-4(line 126) the Hoare annotation is: true [2020-11-07 01:57:22,378 INFO L269 CegarLoopResult]: At program point L143(lines 138 144) the Hoare annotation is: true [2020-11-07 01:57:22,379 INFO L269 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: true [2020-11-07 01:57:22,379 INFO L269 CegarLoopResult]: At program point L127-1(line 127) the Hoare annotation is: true [2020-11-07 01:57:22,379 INFO L262 CegarLoopResult]: At program point L111(lines 111 155) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,379 INFO L262 CegarLoopResult]: At program point L111-1(lines 111 155) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,379 INFO L269 CegarLoopResult]: At program point L145(line 145) the Hoare annotation is: true [2020-11-07 01:57:22,379 INFO L269 CegarLoopResult]: At program point L145-1(line 145) the Hoare annotation is: true [2020-11-07 01:57:22,380 INFO L269 CegarLoopResult]: At program point L145-2(line 145) the Hoare annotation is: true [2020-11-07 01:57:22,380 INFO L269 CegarLoopResult]: At program point L145-3(line 145) the Hoare annotation is: true [2020-11-07 01:57:22,380 INFO L269 CegarLoopResult]: At program point L129-2(line 129) the Hoare annotation is: true [2020-11-07 01:57:22,380 INFO L269 CegarLoopResult]: At program point L129-3(line 129) the Hoare annotation is: true [2020-11-07 01:57:22,380 INFO L269 CegarLoopResult]: At program point L129-4(lines 129 135) the Hoare annotation is: true [2020-11-07 01:57:22,380 INFO L269 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: true [2020-11-07 01:57:22,381 INFO L269 CegarLoopResult]: At program point L146-3(lines 146 152) the Hoare annotation is: true [2020-11-07 01:57:22,381 INFO L269 CegarLoopResult]: At program point L146-4(line 146) the Hoare annotation is: true [2020-11-07 01:57:22,381 INFO L269 CegarLoopResult]: At program point L146-5(line 146) the Hoare annotation is: true [2020-11-07 01:57:22,381 INFO L269 CegarLoopResult]: At program point L146-6(lines 146 152) the Hoare annotation is: true [2020-11-07 01:57:22,381 INFO L269 CegarLoopResult]: At program point L146-7(lines 146 152) the Hoare annotation is: true [2020-11-07 01:57:22,381 INFO L269 CegarLoopResult]: At program point ludcmpFINAL(lines 111 155) the Hoare annotation is: true [2020-11-07 01:57:22,381 INFO L262 CegarLoopResult]: At program point L114(line 114) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,382 INFO L262 CegarLoopResult]: At program point L114-1(line 114) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,382 INFO L262 CegarLoopResult]: At program point L114-2(line 114) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,382 INFO L269 CegarLoopResult]: At program point L131(line 131) the Hoare annotation is: true [2020-11-07 01:57:22,382 INFO L269 CegarLoopResult]: At program point L131-1(line 131) the Hoare annotation is: true [2020-11-07 01:57:22,382 INFO L269 CegarLoopResult]: At program point L131-2(line 131) the Hoare annotation is: true [2020-11-07 01:57:22,382 INFO L269 CegarLoopResult]: At program point L148(line 148) the Hoare annotation is: true [2020-11-07 01:57:22,382 INFO L262 CegarLoopResult]: At program point L115(line 115) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,383 INFO L269 CegarLoopResult]: At program point L148-1(line 148) the Hoare annotation is: true [2020-11-07 01:57:22,383 INFO L262 CegarLoopResult]: At program point L115-1(line 115) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,383 INFO L269 CegarLoopResult]: At program point L148-2(line 148) the Hoare annotation is: true [2020-11-07 01:57:22,383 INFO L269 CegarLoopResult]: At program point L115-2(lines 112 155) the Hoare annotation is: true [2020-11-07 01:57:22,383 INFO L269 CegarLoopResult]: At program point L115-3(line 115) the Hoare annotation is: true [2020-11-07 01:57:22,383 INFO L269 CegarLoopResult]: At program point L115-4(line 115) the Hoare annotation is: true [2020-11-07 01:57:22,383 INFO L269 CegarLoopResult]: At program point L115-5(line 115) the Hoare annotation is: true [2020-11-07 01:57:22,384 INFO L269 CegarLoopResult]: At program point L115-6(line 115) the Hoare annotation is: true [2020-11-07 01:57:22,384 INFO L269 CegarLoopResult]: At program point L115-7(line 115) the Hoare annotation is: true [2020-11-07 01:57:22,384 INFO L269 CegarLoopResult]: At program point L115-8(line 115) the Hoare annotation is: true [2020-11-07 01:57:22,384 INFO L269 CegarLoopResult]: At program point L132(line 132) the Hoare annotation is: true [2020-11-07 01:57:22,384 INFO L269 CegarLoopResult]: At program point L132-3(lines 132 133) the Hoare annotation is: true [2020-11-07 01:57:22,384 INFO L269 CegarLoopResult]: At program point L132-4(line 132) the Hoare annotation is: true [2020-11-07 01:57:22,384 INFO L269 CegarLoopResult]: At program point L132-5(line 132) the Hoare annotation is: true [2020-11-07 01:57:22,385 INFO L269 CegarLoopResult]: At program point L132-6(lines 132 133) the Hoare annotation is: true [2020-11-07 01:57:22,385 INFO L269 CegarLoopResult]: At program point L132-7(lines 132 133) the Hoare annotation is: true [2020-11-07 01:57:22,385 INFO L269 CegarLoopResult]: At program point L149(line 149) the Hoare annotation is: true [2020-11-07 01:57:22,385 INFO L269 CegarLoopResult]: At program point L149-3(lines 149 150) the Hoare annotation is: true [2020-11-07 01:57:22,385 INFO L269 CegarLoopResult]: At program point L149-4(line 149) the Hoare annotation is: true [2020-11-07 01:57:22,385 INFO L269 CegarLoopResult]: At program point L149-5(line 149) the Hoare annotation is: true [2020-11-07 01:57:22,385 INFO L269 CegarLoopResult]: At program point L149-6(lines 149 150) the Hoare annotation is: true [2020-11-07 01:57:22,386 INFO L269 CegarLoopResult]: At program point L149-7(lines 149 150) the Hoare annotation is: true [2020-11-07 01:57:22,386 INFO L269 CegarLoopResult]: At program point L133(line 133) the Hoare annotation is: true [2020-11-07 01:57:22,386 INFO L269 CegarLoopResult]: At program point L133-1(line 133) the Hoare annotation is: true [2020-11-07 01:57:22,386 INFO L269 CegarLoopResult]: At program point L133-2(line 133) the Hoare annotation is: true [2020-11-07 01:57:22,386 INFO L269 CegarLoopResult]: At program point L133-3(line 133) the Hoare annotation is: true [2020-11-07 01:57:22,386 INFO L269 CegarLoopResult]: At program point L133-4(line 133) the Hoare annotation is: true [2020-11-07 01:57:22,386 INFO L269 CegarLoopResult]: At program point L150(line 150) the Hoare annotation is: true [2020-11-07 01:57:22,387 INFO L269 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: true [2020-11-07 01:57:22,387 INFO L269 CegarLoopResult]: At program point L150-1(line 150) the Hoare annotation is: true [2020-11-07 01:57:22,387 INFO L269 CegarLoopResult]: At program point L150-2(line 150) the Hoare annotation is: true [2020-11-07 01:57:22,387 INFO L269 CegarLoopResult]: At program point L150-3(line 150) the Hoare annotation is: true [2020-11-07 01:57:22,387 INFO L269 CegarLoopResult]: At program point L150-4(line 150) the Hoare annotation is: true [2020-11-07 01:57:22,387 INFO L269 CegarLoopResult]: At program point L134(lines 129 135) the Hoare annotation is: true [2020-11-07 01:57:22,387 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,388 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,388 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,388 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,388 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,388 INFO L269 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,388 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,388 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |old(#memory_real)| |#memory_real|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point L71(line 71) the Hoare annotation is: true [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point L71-1(line 71) the Hoare annotation is: true [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point L71-2(line 71) the Hoare annotation is: true [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point L71-3(line 71) the Hoare annotation is: true [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point L71-4(line 71) the Hoare annotation is: true [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 01:57:22,389 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,390 INFO L269 CegarLoopResult]: At program point L81(line 81) the Hoare annotation is: true [2020-11-07 01:57:22,390 INFO L269 CegarLoopResult]: At program point L80(lines 80 81) the Hoare annotation is: true [2020-11-07 01:57:22,390 INFO L269 CegarLoopResult]: At program point L80-1(line 80) the Hoare annotation is: true [2020-11-07 01:57:22,390 INFO L269 CegarLoopResult]: At program point L78(line 78) the Hoare annotation is: true [2020-11-07 01:57:22,390 INFO L269 CegarLoopResult]: At program point L80-3(lines 80 81) the Hoare annotation is: true [2020-11-07 01:57:22,390 INFO L269 CegarLoopResult]: At program point fabsEXIT(lines 76 83) the Hoare annotation is: true [2020-11-07 01:57:22,390 INFO L269 CegarLoopResult]: At program point fabsENTRY(lines 76 83) the Hoare annotation is: true [2020-11-07 01:57:22,391 INFO L269 CegarLoopResult]: At program point fabsFINAL(lines 76 83) the Hoare annotation is: true [2020-11-07 01:57:22,391 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,391 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,391 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,391 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 01:57:22,391 INFO L262 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,391 INFO L262 CegarLoopResult]: At program point L93-3(line 93) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,392 INFO L262 CegarLoopResult]: At program point L89(line 89) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,392 INFO L262 CegarLoopResult]: At program point L93-4(line 93) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,392 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 85 109) the Hoare annotation is: true [2020-11-07 01:57:22,392 INFO L262 CegarLoopResult]: At program point L89-1(line 89) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,392 INFO L262 CegarLoopResult]: At program point L93-5(lines 93 104) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,392 INFO L269 CegarLoopResult]: At program point L93-6(lines 93 104) the Hoare annotation is: true [2020-11-07 01:57:22,393 INFO L269 CegarLoopResult]: At program point L106(line 106) the Hoare annotation is: true [2020-11-07 01:57:22,393 INFO L269 CegarLoopResult]: At program point L106-1(line 106) the Hoare annotation is: true [2020-11-07 01:57:22,393 INFO L269 CegarLoopResult]: At program point L106-2(line 106) the Hoare annotation is: true [2020-11-07 01:57:22,393 INFO L262 CegarLoopResult]: At program point L102(line 102) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,393 INFO L262 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,393 INFO L262 CegarLoopResult]: At program point L98-1(lines 97 101) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,393 INFO L262 CegarLoopResult]: At program point L103(lines 93 104) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,394 INFO L262 CegarLoopResult]: At program point L99(line 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,394 INFO L262 CegarLoopResult]: At program point L99-1(line 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,394 INFO L262 CegarLoopResult]: At program point L99-2(line 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,394 INFO L262 CegarLoopResult]: At program point L95(line 95) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,394 INFO L262 CegarLoopResult]: At program point L99-4(line 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,395 INFO L262 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,395 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 85 109) the Hoare annotation is: true [2020-11-07 01:57:22,395 INFO L269 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: true [2020-11-07 01:57:22,395 INFO L262 CegarLoopResult]: At program point L100(line 100) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,395 INFO L262 CegarLoopResult]: At program point L100-1(line 100) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,395 INFO L262 CegarLoopResult]: At program point L96(line 96) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,395 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 85 109) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,396 INFO L262 CegarLoopResult]: At program point L96-3(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,396 INFO L262 CegarLoopResult]: At program point L96-4(line 96) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,396 INFO L262 CegarLoopResult]: At program point L96-5(line 96) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,396 INFO L262 CegarLoopResult]: At program point L96-6(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,396 INFO L262 CegarLoopResult]: At program point L96-7(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-11-07 01:57:22,396 INFO L262 CegarLoopResult]: At program point L88(line 88) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,397 INFO L262 CegarLoopResult]: At program point L88-1(line 88) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,397 INFO L262 CegarLoopResult]: At program point L88-2(line 88) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,397 INFO L262 CegarLoopResult]: At program point L88-3(line 88) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-11-07 01:57:22,397 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-11-07 01:57:22,397 INFO L262 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 01:57:22,397 INFO L262 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 01:57:22,398 INFO L262 CegarLoopResult]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 01:57:22,398 INFO L262 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 01:57:22,398 INFO L262 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 01:57:22,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:57:22 BoogieIcfgContainer [2020-11-07 01:57:22,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 01:57:22,421 INFO L168 Benchmark]: Toolchain (without parser) took 7847.91 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 127.9 MB in the beginning and 157.8 MB in the end (delta: -29.8 MB). Peak memory consumption was 124.3 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:22,421 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:57:22,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.64 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 115.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:22,423 INFO L168 Benchmark]: Boogie Preprocessor took 59.45 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 113.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:22,424 INFO L168 Benchmark]: RCFGBuilder took 776.13 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 109.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:22,425 INFO L168 Benchmark]: TraceAbstraction took 6687.41 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 109.2 MB in the beginning and 157.8 MB in the end (delta: -48.6 MB). Peak memory consumption was 104.0 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:22,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 312.64 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 115.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.45 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 113.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 776.13 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 109.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6687.41 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 109.2 MB in the beginning and 157.8 MB in the end (delta: -48.6 MB). Peak memory consumption was 104.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: n <= 5 && 5 <= n - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: (i <= 5 && n <= 5) && 5 <= n - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 111]: Procedure Contract for ludcmp Derived contract for procedure ludcmp: 1 - ProcedureContractResult [Line: 76]: Procedure Contract for fabs Derived contract for procedure fabs: 1 - ProcedureContractResult [Line: 85]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 195 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 425 SDtfs, 243 SDslu, 416 SDs, 0 SdLazy, 749 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 49 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 195 LocationsWithAnnotation, 495 PreInvPairs, 788 NumberOfFragments, 628 HoareAnnotationTreeSize, 495 FomulaSimplifications, 3273 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 195 FomulaSimplificationsInter, 1349 FormulaSimplificationTreeSizeReductionInter, 0.8s 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...