/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:44:24,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:44:24,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:44:24,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:44:24,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:44:24,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:44:24,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:44:24,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:44:24,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:44:24,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:44:24,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:44:24,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:44:24,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:44:24,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:44:24,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:44:24,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:44:24,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:44:24,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:44:24,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:44:24,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:44:24,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:44:24,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:44:24,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:44:24,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:44:24,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:44:24,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:44:24,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:44:24,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:44:24,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:44:24,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:44:24,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:44:24,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:44:24,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:44:24,545 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:44:24,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:44:24,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:44:24,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:44:24,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:44:24,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:44:24,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:44:24,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:44:24,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:44:24,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:44:24,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:44:24,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:44:24,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:44:24,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:44:24,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:44:24,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:44:24,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:44:24,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:44:24,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:44:24,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:44:24,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:44:24,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:44:24,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:44:24,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:44:24,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:44:24,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:44:25,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:44:25,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:44:25,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:44:25,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:44:25,042 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:44:25,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1.i [2020-09-04 13:44:25,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/070681707/5e57e5d152094a5785f25bdfe06c704d/FLAG0daeaf387 [2020-09-04 13:44:25,628 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:44:25,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-new/count_by_1.i [2020-09-04 13:44:25,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/070681707/5e57e5d152094a5785f25bdfe06c704d/FLAG0daeaf387 [2020-09-04 13:44:25,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/070681707/5e57e5d152094a5785f25bdfe06c704d [2020-09-04 13:44:25,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:44:25,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:44:25,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:44:25,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:44:25,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:44:25,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:44:25" (1/1) ... [2020-09-04 13:44:25,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3651a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:25, skipping insertion in model container [2020-09-04 13:44:25,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:44:25" (1/1) ... [2020-09-04 13:44:25,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:44:26,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:44:26,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:44:26,234 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:44:26,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:44:26,264 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:44:26,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26 WrapperNode [2020-09-04 13:44:26,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:44:26,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:44:26,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:44:26,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:44:26,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... [2020-09-04 13:44:26,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... [2020-09-04 13:44:26,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... [2020-09-04 13:44:26,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... [2020-09-04 13:44:26,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... [2020-09-04 13:44:26,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... [2020-09-04 13:44:26,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... [2020-09-04 13:44:26,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:44:26,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:44:26,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:44:26,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:44:26,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:44:26,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:44:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:44:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 13:44:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 13:44:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:44:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:44:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 13:44:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 13:44:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 13:44:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:44:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:44:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:44:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:44:26,669 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:44:26,670 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:44:26,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:44:26 BoogieIcfgContainer [2020-09-04 13:44:26,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:44:26,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:44:26,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:44:26,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:44:26,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:44:25" (1/3) ... [2020-09-04 13:44:26,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba6b929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:44:26, skipping insertion in model container [2020-09-04 13:44:26,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:26" (2/3) ... [2020-09-04 13:44:26,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba6b929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:44:26, skipping insertion in model container [2020-09-04 13:44:26,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:44:26" (3/3) ... [2020-09-04 13:44:26,711 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1.i [2020-09-04 13:44:26,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:44:26,763 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:44:26,799 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:44:26,828 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:44:26,828 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:44:26,828 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:44:26,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:44:26,829 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:44:26,829 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:44:26,829 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:44:26,829 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:44:26,847 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-09-04 13:44:26,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-04 13:44:26,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:26,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:26,855 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:26,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:26,862 INFO L82 PathProgramCache]: Analyzing trace with hash 650151859, now seen corresponding path program 1 times [2020-09-04 13:44:26,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:26,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224811941] [2020-09-04 13:44:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:27,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:27,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224811941] [2020-09-04 13:44:27,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:44:27,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 13:44:27,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787250114] [2020-09-04 13:44:27,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:44:27,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:27,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:44:27,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 13:44:27,068 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-09-04 13:44:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:27,120 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-09-04 13:44:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:44:27,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-04 13:44:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:27,135 INFO L225 Difference]: With dead ends: 33 [2020-09-04 13:44:27,135 INFO L226 Difference]: Without dead ends: 14 [2020-09-04 13:44:27,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 13:44:27,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-09-04 13:44:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-09-04 13:44:27,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-09-04 13:44:27,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-09-04 13:44:27,191 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2020-09-04 13:44:27,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:27,192 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-09-04 13:44:27,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:44:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-09-04 13:44:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-04 13:44:27,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:27,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:27,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:44:27,194 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:27,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:27,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1133927695, now seen corresponding path program 1 times [2020-09-04 13:44:27,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:27,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85070068] [2020-09-04 13:44:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:27,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:27,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85070068] [2020-09-04 13:44:27,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099125222] [2020-09-04 13:44:27,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:44:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:27,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2020-09-04 13:44:27,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:44:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:27,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:44:27,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-09-04 13:44:27,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861784999] [2020-09-04 13:44:27,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:44:27,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:27,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:44:27,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:44:27,375 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2020-09-04 13:44:27,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:27,426 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-09-04 13:44:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 13:44:27,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-04 13:44:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:27,428 INFO L225 Difference]: With dead ends: 21 [2020-09-04 13:44:27,429 INFO L226 Difference]: Without dead ends: 16 [2020-09-04 13:44:27,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:44:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-09-04 13:44:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-09-04 13:44:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-09-04 13:44:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-09-04 13:44:27,435 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2020-09-04 13:44:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:27,435 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-09-04 13:44:27,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:44:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-09-04 13:44:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-04 13:44:27,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:27,437 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:27,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-09-04 13:44:27,652 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:27,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:27,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1942427985, now seen corresponding path program 2 times [2020-09-04 13:44:27,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:27,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25560689] [2020-09-04 13:44:27,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:27,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:27,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25560689] [2020-09-04 13:44:27,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380595760] [2020-09-04 13:44:27,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:44:27,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:44:27,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:44:27,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:44:27,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:44:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:27,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:44:27,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-09-04 13:44:27,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554119748] [2020-09-04 13:44:27,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:44:27,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:27,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:44:27,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:44:27,756 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2020-09-04 13:44:27,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:27,799 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-09-04 13:44:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:44:27,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-04 13:44:27,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:27,802 INFO L225 Difference]: With dead ends: 23 [2020-09-04 13:44:27,802 INFO L226 Difference]: Without dead ends: 18 [2020-09-04 13:44:27,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:44:27,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-04 13:44:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-09-04 13:44:27,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-09-04 13:44:27,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-09-04 13:44:27,809 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2020-09-04 13:44:27,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:27,810 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-09-04 13:44:27,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:44:27,810 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-09-04 13:44:27,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-04 13:44:27,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:27,811 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:28,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:44:28,027 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:28,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:28,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1522126099, now seen corresponding path program 3 times [2020-09-04 13:44:28,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:28,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58956165] [2020-09-04 13:44:28,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:28,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:28,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:28,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58956165] [2020-09-04 13:44:28,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085081262] [2020-09-04 13:44:28,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-09-04 13:44:28,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-09-04 13:44:28,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:44:28,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:44:28,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:44:28,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:44:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-04 13:44:28,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:44:28,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2020-09-04 13:44:28,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208692803] [2020-09-04 13:44:28,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 13:44:28,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:28,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 13:44:28,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:44:28,269 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 7 states. [2020-09-04 13:44:28,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:28,319 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-09-04 13:44:28,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:44:28,319 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-09-04 13:44:28,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:28,320 INFO L225 Difference]: With dead ends: 17 [2020-09-04 13:44:28,320 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:44:28,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:44:28,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:44:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:44:28,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:44:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:44:28,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-04 13:44:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:28,323 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:44:28,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 13:44:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:44:28,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:44:28,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:44:28,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:44:28,582 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 13:44:28,582 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:44:28,582 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:44:28,582 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 13:44:28,583 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:44:28,583 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:44:28,583 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 13:44:28,583 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 13:44:28,583 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-09-04 13:44:28,584 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 13:44:28,584 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 18) the Hoare annotation is: true [2020-09-04 13:44:28,584 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 18) no Hoare annotation was computed. [2020-09-04 13:44:28,584 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-04 13:44:28,584 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-04 13:44:28,584 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 18) no Hoare annotation was computed. [2020-09-04 13:44:28,585 INFO L264 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (<= main_~i~0 1000000) [2020-09-04 13:44:28,585 INFO L264 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (and (<= main_~i~0 1000000) (<= 1000000 main_~i~0)) [2020-09-04 13:44:28,585 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 13:44:28,585 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-04 13:44:28,586 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-04 13:44:28,586 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-04 13:44:28,586 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-04 13:44:28,586 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-04 13:44:28,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:44:28 BoogieIcfgContainer [2020-09-04 13:44:28,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:44:28,607 INFO L168 Benchmark]: Toolchain (without parser) took 2635.60 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.8 MB in the beginning and 96.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:28,608 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:44:28,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.91 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 94.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:28,610 INFO L168 Benchmark]: Boogie Preprocessor took 105.68 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 94.4 MB in the beginning and 183.5 MB in the end (delta: -89.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:28,611 INFO L168 Benchmark]: RCFGBuilder took 306.02 ms. Allocated memory is still 203.4 MB. Free memory was 183.5 MB in the beginning and 170.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:28,612 INFO L168 Benchmark]: TraceAbstraction took 1922.08 ms. Allocated memory is still 203.4 MB. Free memory was 169.6 MB in the beginning and 96.4 MB in the end (delta: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:28,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 293.91 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 94.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.68 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 94.4 MB in the beginning and 183.5 MB in the end (delta: -89.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 306.02 ms. Allocated memory is still 203.4 MB. Free memory was 183.5 MB in the beginning and 170.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1922.08 ms. Allocated memory is still 203.4 MB. Free memory was 169.6 MB in the beginning and 96.4 MB in the end (delta: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 15]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 10 SDslu, 47 SDs, 0 SdLazy, 37 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 15 HoareAnnotationTreeSize, 10 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 94 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 1941 SizeOfPredicates, 3 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, 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...