/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/sum01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 01:57:34,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 01:57:34,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 01:57:34,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 01:57:34,712 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 01:57:34,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 01:57:34,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 01:57:34,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 01:57:34,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 01:57:34,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 01:57:34,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 01:57:34,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 01:57:34,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 01:57:34,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 01:57:34,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 01:57:34,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 01:57:34,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 01:57:34,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 01:57:34,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 01:57:34,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 01:57:34,733 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 01:57:34,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 01:57:34,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 01:57:34,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:57:34,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 01:57:34,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 01:57:34,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 01:57:34,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 01:57:35,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 01:57:35,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 01:57:35,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 01:57:35,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 01:57:35,216 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 01:57:35,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01-2.i [2020-11-07 01:57:35,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791a4949b/927d86f4af9548a38e0946b2439fbeef/FLAGea381807e [2020-11-07 01:57:36,010 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 01:57:36,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum01-2.i [2020-11-07 01:57:36,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791a4949b/927d86f4af9548a38e0946b2439fbeef/FLAGea381807e [2020-11-07 01:57:36,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791a4949b/927d86f4af9548a38e0946b2439fbeef [2020-11-07 01:57:36,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 01:57:36,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 01:57:36,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 01:57:36,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 01:57:36,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 01:57:36,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2375c981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36, skipping insertion in model container [2020-11-07 01:57:36,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 01:57:36,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 01:57:36,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:57:36,687 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 01:57:36,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:57:36,720 INFO L208 MainTranslator]: Completed translation [2020-11-07 01:57:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36 WrapperNode [2020-11-07 01:57:36,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 01:57:36,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 01:57:36,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 01:57:36,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 01:57:36,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... [2020-11-07 01:57:36,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 01:57:36,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 01:57:36,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 01:57:36,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 01:57:36,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:57:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 01:57:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 01:57:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 01:57:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 01:57:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 01:57:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 01:57:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 01:57:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 01:57:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 01:57:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 01:57:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 01:57:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 01:57:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 01:57:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 01:57:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 01:57:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 01:57:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 01:57:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 01:57:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 01:57:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 01:57:37,183 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 01:57:37,183 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 01:57:37,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:37 BoogieIcfgContainer [2020-11-07 01:57:37,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 01:57:37,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 01:57:37,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 01:57:37,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 01:57:37,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:57:36" (1/3) ... [2020-11-07 01:57:37,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e85ebbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:37, skipping insertion in model container [2020-11-07 01:57:37,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:36" (2/3) ... [2020-11-07 01:57:37,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e85ebbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:37, skipping insertion in model container [2020-11-07 01:57:37,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:37" (3/3) ... [2020-11-07 01:57:37,215 INFO L111 eAbstractionObserver]: Analyzing ICFG sum01-2.i [2020-11-07 01:57:37,232 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 01:57:37,235 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 01:57:37,250 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 01:57:37,293 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 01:57:37,293 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 01:57:37,293 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 01:57:37,293 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 01:57:37,293 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 01:57:37,294 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 01:57:37,294 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 01:57:37,294 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 01:57:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-11-07 01:57:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-07 01:57:37,331 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:37,333 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] [2020-11-07 01:57:37,333 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:37,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:37,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1000122115, now seen corresponding path program 1 times [2020-11-07 01:57:37,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:37,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443615472] [2020-11-07 01:57:37,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:37,456 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:37,752 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 01:57:37,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443615472] [2020-11-07 01:57:37,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:37,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 01:57:37,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096932481] [2020-11-07 01:57:37,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 01:57:37,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:37,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 01:57:37,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 01:57:37,781 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2020-11-07 01:57:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:37,917 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2020-11-07 01:57:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 01:57:37,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-07 01:57:37,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:37,928 INFO L225 Difference]: With dead ends: 54 [2020-11-07 01:57:37,928 INFO L226 Difference]: Without dead ends: 30 [2020-11-07 01:57:37,931 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 01:57:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-07 01:57:37,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-07 01:57:37,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-07 01:57:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2020-11-07 01:57:37,980 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 25 [2020-11-07 01:57:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:37,980 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2020-11-07 01:57:37,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 01:57:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2020-11-07 01:57:37,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-07 01:57:37,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:37,982 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] [2020-11-07 01:57:37,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 01:57:37,983 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:37,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:37,984 INFO L82 PathProgramCache]: Analyzing trace with hash -397720652, now seen corresponding path program 1 times [2020-11-07 01:57:37,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:37,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058294906] [2020-11-07 01:57:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:37,988 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:57:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:38,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:38,134 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 01:57:38,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058294906] [2020-11-07 01:57:38,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:38,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 01:57:38,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478262382] [2020-11-07 01:57:38,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 01:57:38,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:38,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 01:57:38,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 01:57:38,138 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 6 states. [2020-11-07 01:57:38,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:38,382 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2020-11-07 01:57:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 01:57:38,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-07 01:57:38,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:38,384 INFO L225 Difference]: With dead ends: 39 [2020-11-07 01:57:38,385 INFO L226 Difference]: Without dead ends: 32 [2020-11-07 01:57:38,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 01:57:38,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-07 01:57:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-11-07 01:57:38,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-07 01:57:38,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-11-07 01:57:38,399 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 25 [2020-11-07 01:57:38,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:38,403 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-11-07 01:57:38,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 01:57:38,403 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-11-07 01:57:38,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-07 01:57:38,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:57:38,405 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] [2020-11-07 01:57:38,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 01:57:38,406 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:57:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:57:38,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1618316969, now seen corresponding path program 1 times [2020-11-07 01:57:38,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:57:38,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180459069] [2020-11-07 01:57:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:57:40,639 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation PRECISE [2020-11-07 01:57:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:40,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:57:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:57:40,931 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 01:57:41,185 WARN L194 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-07 01:57:41,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180459069] [2020-11-07 01:57:41,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:57:41,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 01:57:41,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481732534] [2020-11-07 01:57:41,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 01:57:41,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:57:41,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 01:57:41,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-11-07 01:57:41,770 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 14 states. [2020-11-07 01:57:42,808 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-11-07 01:57:42,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:57:42,958 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2020-11-07 01:57:42,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 01:57:42,959 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2020-11-07 01:57:42,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:57:42,960 INFO L225 Difference]: With dead ends: 32 [2020-11-07 01:57:42,960 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 01:57:42,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2020-11-07 01:57:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 01:57:42,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 01:57:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 01:57:42,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 01:57:42,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-11-07 01:57:42,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:57:42,964 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 01:57:42,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 01:57:42,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 01:57:42,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 01:57:42,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 01:57:42,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 01:57:43,583 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-11-07 01:57:43,736 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2020-11-07 01:57:43,928 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,929 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,929 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,929 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,929 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,929 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,929 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 01:57:43,930 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 01:57:43,930 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,930 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,930 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,930 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,930 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 01:57:43,930 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 01:57:43,931 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 01:57:43,931 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 01:57:43,931 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 01:57:43,931 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 01:57:43,931 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 01:57:43,931 INFO L262 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= main_~sn~0 0) [2020-11-07 01:57:43,931 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 22 29) the Hoare annotation is: true [2020-11-07 01:57:43,932 INFO L269 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-11-07 01:57:43,932 INFO L269 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-11-07 01:57:43,932 INFO L262 CegarLoopResult]: At program point L25-3(lines 25 27) the Hoare annotation is: (and (or (and (<= 2 main_~i~0) (<= main_~sn~0 4) (<= main_~i~0 2) (<= 4 main_~sn~0)) (and (= main_~i~0 1) (= 2 main_~sn~0)) (and (<= (+ (div (+ (* main_~sn~0 (- 1)) 6) (- 2)) 3) main_~i~0) (<= 3 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 3)))) (<= main_~i~0 main_~n~0)) [2020-11-07 01:57:43,932 INFO L269 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true [2020-11-07 01:57:43,932 INFO L262 CegarLoopResult]: At program point L25-4(line 25) the Hoare annotation is: (and (or (and (<= 2 main_~i~0) (<= main_~sn~0 4) (<= main_~i~0 2) (<= 4 main_~sn~0)) (and (= main_~i~0 1) (= 2 main_~sn~0)) (and (<= (+ (div (+ (* main_~sn~0 (- 1)) 6) (- 2)) 3) main_~i~0) (<= 3 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 3)))) (= |main_#t~post4| main_~i~0) (<= main_~i~0 main_~n~0)) [2020-11-07 01:57:43,932 INFO L269 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: true [2020-11-07 01:57:43,933 INFO L262 CegarLoopResult]: At program point L25-5(line 25) the Hoare annotation is: (and (or (and (= 2 main_~sn~0) (= |main_#t~post4| 1)) (and (<= |main_#t~post4| (+ (div (+ main_~sn~0 (- 6)) 2) 3)) (<= 3 |main_#t~post4|) (<= (+ (div (+ (* main_~sn~0 (- 1)) 6) (- 2)) 3) |main_#t~post4|)) (and (<= main_~sn~0 4) (<= |main_#t~post4| 2) (<= 4 main_~sn~0) (<= 2 |main_#t~post4|))) (= main_~i~0 (+ |main_#t~post4| 1)) (<= |main_#t~post4| main_~n~0)) [2020-11-07 01:57:43,933 INFO L262 CegarLoopResult]: At program point L25-6(lines 25 27) the Hoare annotation is: (or (and (= main_~sn~0 0) (= main_~i~0 1)) (and (or (and (<= (+ (div (+ (* main_~sn~0 (- 1)) 6) (- 2)) 4) main_~i~0) (<= 4 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 4))) (and (<= main_~sn~0 4) (<= 3 main_~i~0) (<= main_~i~0 3) (<= 4 main_~sn~0)) (and (= main_~i~0 2) (= 2 main_~sn~0))) (<= main_~i~0 (+ main_~n~0 1)))) [2020-11-07 01:57:43,933 INFO L262 CegarLoopResult]: At program point L25-7(lines 25 27) the Hoare annotation is: (or (= main_~sn~0 0) (and (< main_~n~0 main_~i~0) (or (and (<= (+ (div (+ (* main_~sn~0 (- 1)) 6) (- 2)) 4) main_~i~0) (<= 4 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 4))) (and (<= main_~sn~0 4) (<= 3 main_~i~0) (<= main_~i~0 3) (<= 4 main_~sn~0)) (and (= main_~i~0 2) (= 2 main_~sn~0))) (<= main_~i~0 (+ main_~n~0 1)))) [2020-11-07 01:57:43,933 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 22 29) the Hoare annotation is: true [2020-11-07 01:57:43,933 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 22 29) the Hoare annotation is: true [2020-11-07 01:57:43,934 INFO L262 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (<= main_~i~0 main_~n~0))) (or (and (= main_~sn~0 0) .cse0 (= main_~i~0 1)) (and (or (= 2 main_~sn~0) (<= 4 main_~sn~0)) (<= (+ (div (+ (* main_~sn~0 (- 1)) 4) (- 2)) 3) main_~i~0) .cse0 (<= main_~i~0 (+ (div (+ main_~sn~0 (- 4)) 2) 3))))) [2020-11-07 01:57:43,934 INFO L262 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (= main_~sn~0 0) [2020-11-07 01:57:43,934 INFO L269 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: true [2020-11-07 01:57:43,934 INFO L262 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 01:57:43,934 INFO L262 CegarLoopResult]: At program point L16(lines 16 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 01:57:43,935 INFO L262 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 01:57:43,935 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 15 20) the Hoare annotation is: true [2020-11-07 01:57:43,935 INFO L269 CegarLoopResult]: At program point L16-2(lines 15 20) the Hoare annotation is: true [2020-11-07 01:57:43,935 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 15 20) the Hoare annotation is: true [2020-11-07 01:57:43,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:57:43 BoogieIcfgContainer [2020-11-07 01:57:43,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 01:57:43,956 INFO L168 Benchmark]: Toolchain (without parser) took 7558.62 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 141.3 MB in the beginning and 78.1 MB in the end (delta: 63.2 MB). Peak memory consumption was 97.0 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:43,957 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 100.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:57:43,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.40 ms. Allocated memory is still 164.6 MB. Free memory was 140.7 MB in the beginning and 131.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:43,959 INFO L168 Benchmark]: Boogie Preprocessor took 33.29 ms. Allocated memory is still 164.6 MB. Free memory was 131.4 MB in the beginning and 129.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:43,960 INFO L168 Benchmark]: RCFGBuilder took 429.50 ms. Allocated memory is still 164.6 MB. Free memory was 129.9 MB in the beginning and 116.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:43,961 INFO L168 Benchmark]: TraceAbstraction took 6767.10 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 115.6 MB in the beginning and 78.1 MB in the end (delta: 37.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 8.0 GB. [2020-11-07 01:57:43,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 100.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 312.40 ms. Allocated memory is still 164.6 MB. Free memory was 140.7 MB in the beginning and 131.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.29 ms. Allocated memory is still 164.6 MB. Free memory was 131.4 MB in the beginning and 129.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 429.50 ms. Allocated memory is still 164.6 MB. Free memory was 129.9 MB in the beginning and 116.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6767.10 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 115.6 MB in the beginning and 78.1 MB in the end (delta: 37.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 8.0 GB. * 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: 25]: Loop Invariant Derived loop invariant: (sn == 0 && i == 1) || ((((((sn * -1 + 6) / -2 + 4 <= i && 4 <= i) && i <= (sn + -6) / 2 + 4) || (((sn <= 4 && 3 <= i) && i <= 3) && 4 <= sn)) || (i == 2 && 2 == sn)) && i <= n + 1) - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 22]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 85 SDtfs, 68 SDslu, 118 SDs, 0 SdLazy, 170 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 65 PreInvPairs, 77 NumberOfFragments, 388 HoareAnnotationTreeSize, 65 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 41 FomulaSimplificationsInter, 878 FormulaSimplificationTreeSizeReductionInter, 0.7s 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...