/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 21:44:36,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 21:44:36,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 21:44:36,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 21:44:36,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 21:44:36,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 21:44:36,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 21:44:36,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 21:44:36,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 21:44:36,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 21:44:36,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 21:44:36,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 21:44:36,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 21:44:36,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 21:44:36,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 21:44:36,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 21:44:36,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 21:44:36,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 21:44:36,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 21:44:36,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 21:44:36,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 21:44:36,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 21:44:36,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 21:44:36,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 21:44:36,719 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 21:44:36,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 21:44:36,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 21:44:36,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 21:44:36,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 21:44:36,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 21:44:36,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 21:44:36,722 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 21:44:36,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 21:44:36,722 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 21:44:36,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 21:44:36,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 21:44:36,724 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 21:44:36,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 21:44:36,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 21:44:36,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 21:44:36,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 21:44:36,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 21:44:36,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 21:44:36,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 21:44:37,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 21:44:37,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 21:44:37,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 21:44:37,146 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 21:44:37,147 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 21:44:37,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-10-23 21:44:37,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7695e3f/db75874239604bb3b330e2e40452eac9/FLAG68c140233 [2020-10-23 21:44:37,979 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 21:44:37,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-10-23 21:44:37,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7695e3f/db75874239604bb3b330e2e40452eac9/FLAG68c140233 [2020-10-23 21:44:38,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7695e3f/db75874239604bb3b330e2e40452eac9 [2020-10-23 21:44:38,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 21:44:38,335 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 21:44:38,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 21:44:38,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 21:44:38,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 21:44:38,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585df779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38, skipping insertion in model container [2020-10-23 21:44:38,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 21:44:38,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 21:44:38,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:44:38,559 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 21:44:38,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:44:38,608 INFO L208 MainTranslator]: Completed translation [2020-10-23 21:44:38,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38 WrapperNode [2020-10-23 21:44:38,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 21:44:38,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 21:44:38,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 21:44:38,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 21:44:38,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (1/1) ... [2020-10-23 21:44:38,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 21:44:38,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 21:44:38,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 21:44:38,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 21:44:38,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (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 [2020-10-23 21:44:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 21:44:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 21:44:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 21:44:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 21:44:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2020-10-23 21:44:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2020-10-23 21:44:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 21:44:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 21:44:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 21:44:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 21:44:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 21:44:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 21:44:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 21:44:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 21:44:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 21:44:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2020-10-23 21:44:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2020-10-23 21:44:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 21:44:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 21:44:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 21:44:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 21:44:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 21:44:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 21:44:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 21:44:39,445 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 21:44:39,445 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-23 21:44:39,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:44:39 BoogieIcfgContainer [2020-10-23 21:44:39,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 21:44:39,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 21:44:39,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 21:44:39,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 21:44:39,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:44:38" (1/3) ... [2020-10-23 21:44:39,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3784d2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:44:39, skipping insertion in model container [2020-10-23 21:44:39,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:38" (2/3) ... [2020-10-23 21:44:39,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3784d2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:44:39, skipping insertion in model container [2020-10-23 21:44:39,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:44:39" (3/3) ... [2020-10-23 21:44:39,457 INFO L111 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2020-10-23 21:44:39,474 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 21:44:39,480 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 21:44:39,499 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 21:44:39,536 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 21:44:39,536 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 21:44:39,536 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 21:44:39,537 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 21:44:39,537 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 21:44:39,537 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 21:44:39,537 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 21:44:39,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 21:44:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-10-23 21:44:39,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-23 21:44:39,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:39,580 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] [2020-10-23 21:44:39,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:39,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:39,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1625686649, now seen corresponding path program 1 times [2020-10-23 21:44:39,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:39,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413084994] [2020-10-23 21:44:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:39,696 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:39,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:39,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413084994] [2020-10-23 21:44:39,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:39,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 21:44:39,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388341078] [2020-10-23 21:44:40,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 21:44:40,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:40,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 21:44:40,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 21:44:40,021 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2020-10-23 21:44:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:40,254 INFO L93 Difference]: Finished difference Result 122 states and 145 transitions. [2020-10-23 21:44:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 21:44:40,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-10-23 21:44:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:40,266 INFO L225 Difference]: With dead ends: 122 [2020-10-23 21:44:40,267 INFO L226 Difference]: Without dead ends: 64 [2020-10-23 21:44:40,271 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 [2020-10-23 21:44:40,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-23 21:44:40,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-23 21:44:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-23 21:44:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2020-10-23 21:44:40,332 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 32 [2020-10-23 21:44:40,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:40,333 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2020-10-23 21:44:40,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 21:44:40,333 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2020-10-23 21:44:40,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-23 21:44:40,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:40,336 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] [2020-10-23 21:44:40,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 21:44:40,337 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:40,338 INFO L82 PathProgramCache]: Analyzing trace with hash -2072481362, now seen corresponding path program 1 times [2020-10-23 21:44:40,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:40,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602230078] [2020-10-23 21:44:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:40,343 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:40,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:40,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602230078] [2020-10-23 21:44:40,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:40,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 21:44:40,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955266760] [2020-10-23 21:44:40,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 21:44:40,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:40,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 21:44:40,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:44:40,488 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 6 states. [2020-10-23 21:44:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:40,745 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions. [2020-10-23 21:44:40,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 21:44:40,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-23 21:44:40,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:40,748 INFO L225 Difference]: With dead ends: 133 [2020-10-23 21:44:40,749 INFO L226 Difference]: Without dead ends: 90 [2020-10-23 21:44:40,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:44:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-23 21:44:40,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 66. [2020-10-23 21:44:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-23 21:44:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-10-23 21:44:40,767 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 32 [2020-10-23 21:44:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:40,767 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-10-23 21:44:40,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 21:44:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-10-23 21:44:40,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-23 21:44:40,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:40,771 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] [2020-10-23 21:44:40,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 21:44:40,771 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:40,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:40,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1640974461, now seen corresponding path program 1 times [2020-10-23 21:44:40,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:40,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763306347] [2020-10-23 21:44:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:40,847 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:40,849 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:41,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763306347] [2020-10-23 21:44:41,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:41,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 21:44:41,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532741508] [2020-10-23 21:44:41,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 21:44:41,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:41,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 21:44:41,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-23 21:44:41,109 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 10 states. [2020-10-23 21:44:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:41,695 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2020-10-23 21:44:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 21:44:41,697 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-23 21:44:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:41,698 INFO L225 Difference]: With dead ends: 76 [2020-10-23 21:44:41,698 INFO L226 Difference]: Without dead ends: 72 [2020-10-23 21:44:41,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-23 21:44:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-23 21:44:41,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2020-10-23 21:44:41,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-23 21:44:41,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2020-10-23 21:44:41,734 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 39 [2020-10-23 21:44:41,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:41,735 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2020-10-23 21:44:41,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 21:44:41,735 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-10-23 21:44:41,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-23 21:44:41,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:41,740 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] [2020-10-23 21:44:41,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 21:44:41,741 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:41,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:41,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1527983, now seen corresponding path program 1 times [2020-10-23 21:44:41,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:41,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562406111] [2020-10-23 21:44:41,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:43,089 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-10-23 21:44:43,172 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:43,173 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:43,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:43,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562406111] [2020-10-23 21:44:43,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:43,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-23 21:44:43,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214395243] [2020-10-23 21:44:43,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-23 21:44:43,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:43,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-23 21:44:43,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-23 21:44:43,839 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 18 states. [2020-10-23 21:44:45,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:45,246 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2020-10-23 21:44:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 21:44:45,247 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 48 [2020-10-23 21:44:45,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:45,248 INFO L225 Difference]: With dead ends: 88 [2020-10-23 21:44:45,248 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 21:44:45,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=133, Invalid=797, Unknown=0, NotChecked=0, Total=930 [2020-10-23 21:44:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 21:44:45,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 21:44:45,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 21:44:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 21:44:45,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-10-23 21:44:45,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:45,251 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 21:44:45,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-23 21:44:45,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 21:44:45,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 21:44:45,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 21:44:45,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 21:44:45,941 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2020-10-23 21:44:46,267 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,267 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,267 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,267 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,267 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,267 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,268 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,268 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,268 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,268 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,268 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,268 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,269 INFO L270 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)|)) [2020-10-23 21:44:46,269 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,269 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,269 INFO L277 CegarLoopResult]: At program point printOddENTRY(lines 18 20) the Hoare annotation is: true [2020-10-23 21:44:46,269 INFO L270 CegarLoopResult]: At program point printOddFINAL(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (and (not (= printOdd_~i (* (div printOdd_~i 2) 2))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2))))) (not (let ((.cse2 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse2 (* 2 (div .cse2 2)))))) [2020-10-23 21:44:46,270 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (and (not (= printOdd_~i (* (div printOdd_~i 2) 2))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2))))) (not (let ((.cse2 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse2 (* 2 (div .cse2 2)))))) [2020-10-23 21:44:46,270 INFO L270 CegarLoopResult]: At program point printOddEXIT(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (and (not (= printOdd_~i (* (div printOdd_~i 2) 2))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2))))) (not (let ((.cse2 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse2 (* 2 (div .cse2 2)))))) [2020-10-23 21:44:46,270 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,270 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,270 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,270 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,271 INFO L277 CegarLoopResult]: At program point L39-6(lines 39 45) the Hoare annotation is: true [2020-10-23 21:44:46,271 INFO L277 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-10-23 21:44:46,271 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 21 47) the Hoare annotation is: true [2020-10-23 21:44:46,271 INFO L270 CegarLoopResult]: At program point L27-3(lines 27 30) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,271 INFO L277 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-10-23 21:44:46,271 INFO L270 CegarLoopResult]: At program point L27-4(line 27) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,272 INFO L277 CegarLoopResult]: At program point L27-5(line 27) the Hoare annotation is: true [2020-10-23 21:44:46,272 INFO L277 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-10-23 21:44:46,272 INFO L277 CegarLoopResult]: At program point L27-6(lines 27 30) the Hoare annotation is: true [2020-10-23 21:44:46,272 INFO L277 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true [2020-10-23 21:44:46,272 INFO L277 CegarLoopResult]: At program point L27-7(lines 27 30) the Hoare annotation is: true [2020-10-23 21:44:46,272 INFO L270 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (and (< main_~i~0 main_~num~0) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))) [2020-10-23 21:44:46,273 INFO L270 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (< main_~i~0 main_~num~0) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))) [2020-10-23 21:44:46,273 INFO L270 CegarLoopResult]: At program point L36-2(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (< main_~i~0 main_~num~0) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))) [2020-10-23 21:44:46,273 INFO L270 CegarLoopResult]: At program point L32-2(lines 32 38) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,273 INFO L270 CegarLoopResult]: At program point L32-3(line 32) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,273 INFO L277 CegarLoopResult]: At program point L32-4(line 32) the Hoare annotation is: true [2020-10-23 21:44:46,273 INFO L277 CegarLoopResult]: At program point L32-5(lines 32 38) the Hoare annotation is: true [2020-10-23 21:44:46,274 INFO L277 CegarLoopResult]: At program point L32-6(lines 32 38) the Hoare annotation is: true [2020-10-23 21:44:46,274 INFO L270 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,274 INFO L270 CegarLoopResult]: At program point L41-1(lines 41 44) the Hoare annotation is: (and (< main_~i~0 main_~num~0) (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) [2020-10-23 21:44:46,274 INFO L270 CegarLoopResult]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (not (= (let ((.cse1 (mod .cse0 2))) (ite (and (< .cse0 0) (not (= .cse1 0))) (+ .cse1 (- 2)) .cse1)) 0)) (< main_~i~0 main_~num~0) (= |main_#t~mem10| .cse0))) [2020-10-23 21:44:46,274 INFO L270 CegarLoopResult]: At program point L41-4(line 41) the Hoare annotation is: (and (< main_~i~0 main_~num~0) (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) [2020-10-23 21:44:46,274 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,275 INFO L270 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,275 INFO L270 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,275 INFO L277 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-10-23 21:44:46,275 INFO L277 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-10-23 21:44:46,275 INFO L277 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true [2020-10-23 21:44:46,275 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 21 47) the Hoare annotation is: true [2020-10-23 21:44:46,275 INFO L270 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,276 INFO L270 CegarLoopResult]: At program point L34-1(lines 34 37) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (< main_~i~0 main_~num~0)) [2020-10-23 21:44:46,276 INFO L270 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (= .cse0 |main_#t~mem7|) (< main_~i~0 main_~num~0) (<= .cse0 (* 2 (div .cse0 2))))) [2020-10-23 21:44:46,276 INFO L270 CegarLoopResult]: At program point L34-4(line 34) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (< main_~i~0 main_~num~0) (not (= (let ((.cse0 (mod |main_#t~mem7| 2))) (ite (and (not (= .cse0 0)) (< |main_#t~mem7| 0)) (+ .cse0 (- 2)) .cse0)) 0))) [2020-10-23 21:44:46,276 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 21 47) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-23 21:44:46,277 INFO L270 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (not (= (let ((.cse1 (mod .cse0 2))) (ite (and (< .cse0 0) (not (= .cse1 0))) (+ .cse1 (- 2)) .cse1)) 0)) (< main_~i~0 main_~num~0) (= |main_#t~mem10| .cse0))) [2020-10-23 21:44:46,277 INFO L270 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (not (= (let ((.cse1 (mod .cse0 2))) (ite (and (< .cse0 0) (not (= .cse1 0))) (+ .cse1 (- 2)) .cse1)) 0)) (let ((.cse2 (+ |main_#t~mem11| 1))) (<= .cse2 (* 2 (div .cse2 2)))) (< main_~i~0 main_~num~0) (= |main_#t~mem10| .cse0))) [2020-10-23 21:44:46,277 INFO L270 CegarLoopResult]: At program point L43-2(line 43) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (not (= (let ((.cse1 (mod .cse0 2))) (ite (and (< .cse0 0) (not (= .cse1 0))) (+ .cse1 (- 2)) .cse1)) 0)) (let ((.cse2 (+ |main_#t~mem11| 1))) (<= .cse2 (* 2 (div .cse2 2)))) (< main_~i~0 main_~num~0) (= |main_#t~mem10| .cse0))) [2020-10-23 21:44:46,277 INFO L270 CegarLoopResult]: At program point L39-2(lines 39 45) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,277 INFO L270 CegarLoopResult]: At program point L39-3(line 39) the Hoare annotation is: (< main_~i~0 main_~num~0) [2020-10-23 21:44:46,278 INFO L277 CegarLoopResult]: At program point L39-4(line 39) the Hoare annotation is: true [2020-10-23 21:44:46,278 INFO L277 CegarLoopResult]: At program point L39-5(lines 39 45) the Hoare annotation is: true [2020-10-23 21:44:46,278 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2020-10-23 21:44:46,278 INFO L270 CegarLoopResult]: At program point printEvenEXIT(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2020-10-23 21:44:46,278 INFO L277 CegarLoopResult]: At program point printEvenENTRY(lines 15 17) the Hoare annotation is: true [2020-10-23 21:44:46,279 INFO L270 CegarLoopResult]: At program point printEvenFINAL(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2020-10-23 21:44:46,279 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 14) the Hoare annotation is: true [2020-10-23 21:44:46,279 INFO L270 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (let ((.cse1 (= |__VERIFIER_assert_#in~cond| 0))) (and (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) .cse1 (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) (or .cse1 (not (= __VERIFIER_assert_~cond 0))))) [2020-10-23 21:44:46,279 INFO L270 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-23 21:44:46,279 INFO L270 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-23 21:44:46,279 INFO L270 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (let ((.cse1 (= |__VERIFIER_assert_#in~cond| 0))) (and (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) .cse1 (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) (or .cse1 (not (= __VERIFIER_assert_~cond 0))))) [2020-10-23 21:44:46,280 INFO L270 CegarLoopResult]: At program point __VERIFIER_assertEXIT(line 14) the Hoare annotation is: (let ((.cse1 (= |__VERIFIER_assert_#in~cond| 0))) (and (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) .cse1 (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) (or .cse1 (not (= __VERIFIER_assert_~cond 0))))) [2020-10-23 21:44:46,293 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 21:44:46,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 21:44:46,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:44:46 BoogieIcfgContainer [2020-10-23 21:44:46,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 21:44:46,305 INFO L168 Benchmark]: Toolchain (without parser) took 7976.15 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 127.4 MB in the beginning and 130.0 MB in the end (delta: -2.6 MB). Peak memory consumption was 106.4 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,306 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 124.6 MB in the end (delta: 131.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 21:44:46,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.33 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,309 INFO L168 Benchmark]: Boogie Preprocessor took 45.83 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 115.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,310 INFO L168 Benchmark]: RCFGBuilder took 790.86 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 129.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,311 INFO L168 Benchmark]: TraceAbstraction took 6853.72 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 129.0 MB in the beginning and 130.0 MB in the end (delta: -1.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,316 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 151.0 MB. Free memory was 124.7 MB in the beginning and 124.6 MB in the end (delta: 131.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 268.33 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.83 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 115.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 790.86 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 129.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6853.72 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 129.0 MB in the beginning and 130.0 MB in the end (delta: -1.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 18]: Procedure Contract for printOdd [2020-10-23 21:44:46,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 21:44:46,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 21:44:46,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 21:44:46,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure printOdd: (!(\old(i) + 1 <= 2 * ((\old(i) + 1) / 2)) || (!(i == i / 2 * 2) && aux-array[i]-aux + 1 <= 2 * ((aux-array[i]-aux + 1) / 2))) || !(unknown-#memory_int-unknown[array][i * 4 + array] + 1 <= 2 * ((unknown-#memory_int-unknown[array][i * 4 + array] + 1) / 2)) - ProcedureContractResult [Line: 15]: Procedure Contract for printEven Derived contract for procedure printEven: i <= 2 * (i / 2) || !(\old(i) <= 2 * (\old(i) / 2)) - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: ((!(\old(i) + 1 <= 2 * ((\old(i) + 1) / 2)) || \old(cond) == 0) || !(i == i / 2 * 2)) && (\old(cond) == 0 || !(cond == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 242 SDtfs, 144 SDslu, 779 SDs, 0 SdLazy, 926 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 75 LocationsWithAnnotation, 143 PreInvPairs, 208 NumberOfFragments, 953 HoareAnnotationTreeSize, 143 FomulaSimplifications, 1342 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 75 FomulaSimplificationsInter, 785 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...