/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-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 02:11:33,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 02:11:33,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 02:11:33,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 02:11:33,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 02:11:33,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 02:11:33,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 02:11:33,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 02:11:33,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 02:11:33,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 02:11:33,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 02:11:33,339 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 02:11:33,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 02:11:33,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 02:11:33,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 02:11:33,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 02:11:33,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 02:11:33,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 02:11:33,341 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 02:11:33,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 02:11:33,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 02:11:33,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 02:11:33,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 02:11:33,343 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 02:11:33,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 02:11:33,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 02:11:33,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 02:11:33,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 02:11:33,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 02:11:33,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 02:11:33,345 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 02:11:33,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 02:11:33,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 02:11:33,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 02:11:33,796 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 02:11:33,797 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 02:11:33,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-11-07 02:11:33,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e310fbc/53aee7f518e142d491fd734383298612/FLAGcd6feb4a5 [2020-11-07 02:11:34,539 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 02:11:34,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-11-07 02:11:34,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e310fbc/53aee7f518e142d491fd734383298612/FLAGcd6feb4a5 [2020-11-07 02:11:34,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e310fbc/53aee7f518e142d491fd734383298612 [2020-11-07 02:11:34,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 02:11:34,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 02:11:34,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 02:11:34,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 02:11:34,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 02:11:34,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:34" (1/1) ... [2020-11-07 02:11:34,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b67db31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34, skipping insertion in model container [2020-11-07 02:11:34,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:34" (1/1) ... [2020-11-07 02:11:34,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 02:11:34,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 02:11:35,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:11:35,149 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 02:11:35,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:11:35,186 INFO L208 MainTranslator]: Completed translation [2020-11-07 02:11:35,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35 WrapperNode [2020-11-07 02:11:35,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 02:11:35,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 02:11:35,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 02:11:35,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 02:11:35,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... [2020-11-07 02:11:35,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... [2020-11-07 02:11:35,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... [2020-11-07 02:11:35,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... [2020-11-07 02:11:35,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... [2020-11-07 02:11:35,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... [2020-11-07 02:11:35,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... [2020-11-07 02:11:35,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 02:11:35,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 02:11:35,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 02:11:35,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 02:11:35,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 02:11:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 02:11:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 02:11:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 02:11:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 02:11:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 02:11:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 02:11:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 02:11:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 02:11:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 02:11:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 02:11:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 02:11:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 02:11:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 02:11:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 02:11:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 02:11:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 02:11:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 02:11:35,922 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 02:11:35,923 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 02:11:35,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:35 BoogieIcfgContainer [2020-11-07 02:11:35,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 02:11:35,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 02:11:35,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 02:11:35,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 02:11:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:11:34" (1/3) ... [2020-11-07 02:11:35,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13769654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:35, skipping insertion in model container [2020-11-07 02:11:35,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:35" (2/3) ... [2020-11-07 02:11:35,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13769654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:35, skipping insertion in model container [2020-11-07 02:11:35,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:35" (3/3) ... [2020-11-07 02:11:35,941 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2020-11-07 02:11:35,961 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 02:11:35,966 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 02:11:35,980 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 02:11:36,028 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 02:11:36,028 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 02:11:36,028 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 02:11:36,029 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 02:11:36,029 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 02:11:36,029 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 02:11:36,029 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 02:11:36,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 02:11:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-11-07 02:11:36,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-07 02:11:36,069 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:11:36,070 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] [2020-11-07 02:11:36,070 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:11:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:11:36,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1350398460, now seen corresponding path program 1 times [2020-11-07 02:11:36,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:11:36,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17454458] [2020-11-07 02:11:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:11:36,191 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:11:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:11:36,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:11:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:11:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:11:36,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17454458] [2020-11-07 02:11:36,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:11:36,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 02:11:36,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327907103] [2020-11-07 02:11:36,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 02:11:36,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:11:36,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 02:11:36,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 02:11:36,492 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 3 states. [2020-11-07 02:11:36,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:11:36,645 INFO L93 Difference]: Finished difference Result 95 states and 117 transitions. [2020-11-07 02:11:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 02:11:36,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-07 02:11:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:11:36,656 INFO L225 Difference]: With dead ends: 95 [2020-11-07 02:11:36,656 INFO L226 Difference]: Without dead ends: 50 [2020-11-07 02:11:36,667 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 02:11:36,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-07 02:11:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-07 02:11:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-07 02:11:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-11-07 02:11:36,733 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 32 [2020-11-07 02:11:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:11:36,734 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-11-07 02:11:36,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 02:11:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-11-07 02:11:36,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-07 02:11:36,736 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:11:36,736 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] [2020-11-07 02:11:36,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 02:11:36,737 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:11:36,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:11:36,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1121365252, now seen corresponding path program 1 times [2020-11-07 02:11:36,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:11:36,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10857276] [2020-11-07 02:11:36,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:11:36,750 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:11:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:11:36,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:11:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:11:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:11:36,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10857276] [2020-11-07 02:11:36,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:11:36,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 02:11:36,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970612425] [2020-11-07 02:11:36,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 02:11:36,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:11:36,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 02:11:36,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 02:11:36,887 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 4 states. [2020-11-07 02:11:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:11:37,111 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2020-11-07 02:11:37,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 02:11:37,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-07 02:11:37,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:11:37,114 INFO L225 Difference]: With dead ends: 102 [2020-11-07 02:11:37,114 INFO L226 Difference]: Without dead ends: 70 [2020-11-07 02:11:37,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 02:11:37,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-07 02:11:37,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 51. [2020-11-07 02:11:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-07 02:11:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2020-11-07 02:11:37,136 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 32 [2020-11-07 02:11:37,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:11:37,137 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2020-11-07 02:11:37,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 02:11:37,138 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2020-11-07 02:11:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-07 02:11:37,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:11:37,140 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 02:11:37,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 02:11:37,140 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:11:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:11:37,141 INFO L82 PathProgramCache]: Analyzing trace with hash -23964121, now seen corresponding path program 1 times [2020-11-07 02:11:37,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:11:37,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276660641] [2020-11-07 02:11:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:11:37,792 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 83 [2020-11-07 02:11:38,148 WARN L194 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 83 [2020-11-07 02:11:38,440 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-11-07 02:11:38,444 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-11-07 02:11:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:11:38,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:11:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:11:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:11:39,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276660641] [2020-11-07 02:11:39,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:11:39,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 02:11:39,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822733316] [2020-11-07 02:11:39,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 02:11:39,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:11:39,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 02:11:39,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-11-07 02:11:39,038 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 11 states. [2020-11-07 02:11:48,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:11:48,452 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2020-11-07 02:11:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 02:11:48,453 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-11-07 02:11:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:11:48,453 INFO L225 Difference]: With dead ends: 69 [2020-11-07 02:11:48,453 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 02:11:48,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=368, Unknown=1, NotChecked=0, Total=462 [2020-11-07 02:11:48,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 02:11:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 02:11:48,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 02:11:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 02:11:48,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2020-11-07 02:11:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:11:48,459 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 02:11:48,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 02:11:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 02:11:48,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 02:11:48,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 02:11:48,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 02:11:49,255 INFO L262 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: (and (not (<= 2 __VERIFIER_assert_~cond)) (not (<= (+ __VERIFIER_assert_~cond 2) 0))) [2020-11-07 02:11:49,256 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 02:11:49,256 INFO L262 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: (and (not (<= 2 __VERIFIER_assert_~cond)) (not (<= (+ __VERIFIER_assert_~cond 2) 0))) [2020-11-07 02:11:49,256 INFO L262 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: (and (not (<= 2 __VERIFIER_assert_~cond)) (not (<= (+ __VERIFIER_assert_~cond 2) 0))) [2020-11-07 02:11:49,257 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 02:11:49,257 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 02:11:49,257 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 02:11:49,257 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 02:11:49,258 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 02:11:49,258 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 02:11:49,258 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 02:11:49,258 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 02:11:49,259 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 02:11:49,259 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 02:11:49,259 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 02:11:49,259 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 02:11:49,259 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 02:11:49,259 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 02:11:49,259 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 12 27) the Hoare annotation is: true [2020-11-07 02:11:49,260 INFO L269 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-11-07 02:11:49,260 INFO L262 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (< (mod main_~v~0 4294967296) 10) [2020-11-07 02:11:49,260 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= main_~v~0 0) [2020-11-07 02:11:49,260 INFO L262 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (and (= main_~v~0 |main_#t~post11|) (< (mod main_~v~0 4294967296) 10)) [2020-11-07 02:11:49,260 INFO L262 CegarLoopResult]: At program point L23-5(line 23) the Hoare annotation is: (and (< (mod |main_#t~post11| 4294967296) 10) (= main_~v~0 (+ |main_#t~post11| 1))) [2020-11-07 02:11:49,261 INFO L262 CegarLoopResult]: At program point L23-6(line 23) the Hoare annotation is: (or (= main_~v~0 0) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2020-11-07 02:11:49,261 INFO L262 CegarLoopResult]: At program point L23-7(line 23) the Hoare annotation is: (and (< (mod (+ main_~v~0 4294967295) 4294967296) 10) (<= 10 (mod main_~v~0 4294967296))) [2020-11-07 02:11:49,261 INFO L269 CegarLoopResult]: At program point L19-3(lines 19 25) the Hoare annotation is: true [2020-11-07 02:11:49,261 INFO L269 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-11-07 02:11:49,261 INFO L269 CegarLoopResult]: At program point L19-4(line 19) the Hoare annotation is: true [2020-11-07 02:11:49,262 INFO L269 CegarLoopResult]: At program point L19-5(line 19) the Hoare annotation is: true [2020-11-07 02:11:49,262 INFO L269 CegarLoopResult]: At program point L19-6(lines 19 25) the Hoare annotation is: true [2020-11-07 02:11:49,262 INFO L269 CegarLoopResult]: At program point L19-7(lines 19 25) the Hoare annotation is: true [2020-11-07 02:11:49,262 INFO L269 CegarLoopResult]: At program point L24(lines 22 25) the Hoare annotation is: true [2020-11-07 02:11:49,262 INFO L269 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-11-07 02:11:49,262 INFO L269 CegarLoopResult]: At program point L20-3(lines 20 25) the Hoare annotation is: true [2020-11-07 02:11:49,263 INFO L269 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-11-07 02:11:49,263 INFO L269 CegarLoopResult]: At program point L20-4(line 20) the Hoare annotation is: true [2020-11-07 02:11:49,263 INFO L269 CegarLoopResult]: At program point L20-5(line 20) the Hoare annotation is: true [2020-11-07 02:11:49,263 INFO L269 CegarLoopResult]: At program point L20-6(lines 20 25) the Hoare annotation is: true [2020-11-07 02:11:49,263 INFO L269 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-11-07 02:11:49,263 INFO L269 CegarLoopResult]: At program point L21-3(lines 21 25) the Hoare annotation is: true [2020-11-07 02:11:49,263 INFO L269 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-11-07 02:11:49,264 INFO L269 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: true [2020-11-07 02:11:49,264 INFO L269 CegarLoopResult]: At program point L21-5(line 21) the Hoare annotation is: true [2020-11-07 02:11:49,264 INFO L269 CegarLoopResult]: At program point L21-6(lines 21 25) the Hoare annotation is: true [2020-11-07 02:11:49,264 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 12 27) the Hoare annotation is: true [2020-11-07 02:11:49,264 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 12 27) the Hoare annotation is: true [2020-11-07 02:11:49,264 INFO L269 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-11-07 02:11:49,265 INFO L269 CegarLoopResult]: At program point L22-3(line 22) the Hoare annotation is: true [2020-11-07 02:11:49,265 INFO L269 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-11-07 02:11:49,265 INFO L269 CegarLoopResult]: At program point L22-4(line 22) the Hoare annotation is: true [2020-11-07 02:11:49,265 INFO L269 CegarLoopResult]: At program point L22-5(lines 22 25) the Hoare annotation is: true [2020-11-07 02:11:49,265 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-11-07 02:11:49,265 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: true [2020-11-07 02:11:49,266 INFO L262 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (let ((.cse0 (div main_~v~0 4294967296))) (or (not (< 0 (+ .cse0 1))) (<= 2 |__VERIFIER_assert_#in~cond|) (<= (+ |__VERIFIER_assert_#in~cond| 2) 0) (not (<= main_~v~0 10)) (not (<= (+ (* 4294967296 .cse0) 10) main_~v~0)))) [2020-11-07 02:11:49,266 INFO L269 CegarLoopResult]: At program point L6(lines 6 8) the Hoare annotation is: true [2020-11-07 02:11:49,266 INFO L262 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (let ((.cse0 (div main_~v~0 4294967296))) (or (not (< 0 (+ .cse0 1))) (not (<= main_~v~0 10)) (not (<= (+ (* 4294967296 .cse0) 10) main_~v~0)))) [2020-11-07 02:11:49,266 INFO L269 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2020-11-07 02:11:49,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:11:49 BoogieIcfgContainer [2020-11-07 02:11:49,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 02:11:49,287 INFO L168 Benchmark]: Toolchain (without parser) took 14373.57 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 129.8 MB in the beginning and 159.7 MB in the end (delta: -29.9 MB). Peak memory consumption was 99.7 MB. Max. memory is 8.0 GB. [2020-11-07 02:11:49,288 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 127.3 MB in the end (delta: 119.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 02:11:49,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.67 ms. Allocated memory is still 153.1 MB. Free memory was 129.1 MB in the beginning and 119.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-07 02:11:49,290 INFO L168 Benchmark]: Boogie Preprocessor took 66.06 ms. Allocated memory is still 153.1 MB. Free memory was 119.9 MB in the beginning and 118.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 02:11:49,291 INFO L168 Benchmark]: RCFGBuilder took 671.92 ms. Allocated memory is still 153.1 MB. Free memory was 118.2 MB in the beginning and 132.5 MB in the end (delta: -14.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2020-11-07 02:11:49,292 INFO L168 Benchmark]: TraceAbstraction took 13354.10 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 131.9 MB in the beginning and 159.7 MB in the end (delta: -27.7 MB). Peak memory consumption was 101.3 MB. Max. memory is 8.0 GB. [2020-11-07 02:11:49,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 127.3 MB in the end (delta: 119.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 267.67 ms. Allocated memory is still 153.1 MB. Free memory was 129.1 MB in the beginning and 119.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.06 ms. Allocated memory is still 153.1 MB. Free memory was 119.9 MB in the beginning and 118.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 671.92 ms. Allocated memory is still 153.1 MB. Free memory was 118.2 MB in the beginning and 132.5 MB in the end (delta: -14.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13354.10 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 131.9 MB in the beginning and 159.7 MB in the end (delta: -27.7 MB). Peak memory consumption was 101.3 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: 23]: Loop Invariant Derived loop invariant: v == 0 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: !(2 <= cond) && !(cond + 2 <= 0) - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 157 SDtfs, 217 SDslu, 97 SDs, 0 SdLazy, 273 SolverSat, 16 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 19 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 78 PreInvPairs, 129 NumberOfFragments, 216 HoareAnnotationTreeSize, 78 FomulaSimplifications, 3115 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 58 FomulaSimplificationsInter, 1454 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...