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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:06:47,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:06:47,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:06:47,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:06:47,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:06:47,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:06:47,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:06:47,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:06:47,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:06:47,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:06:47,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:06:47,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:06:47,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:06:47,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:06:47,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:06:47,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:06:47,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:06:47,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:06:47,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:06:47,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:06:47,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:06:47,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:06:47,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:06:47,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:06:47,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:06:47,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:06:47,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:06:47,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:06:47,823 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:06:47,857 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:06:47,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:06:47,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:06:47,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:06:47,861 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:06:47,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:06:47,865 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:06:47,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:06:47,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:06:47,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:06:47,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:06:47,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:06:47,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:06:47,866 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:06:47,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:06:47,866 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:06:47,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:06:47,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:06:47,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:06:47,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:06:47,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:06:47,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:06:47,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:06:47,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:06:47,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:06:47,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:06:47,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:06:47,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:06:47,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:06:48,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:06:48,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:06:48,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:06:48,192 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:06:48,193 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:06:48,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-13 21:06:48,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dd8fd8c/ce1c179c4b8f4c7d93c526d3857ca681/FLAGd641585b3 [2019-10-13 21:06:48,747 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:06:48,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-13 21:06:48,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dd8fd8c/ce1c179c4b8f4c7d93c526d3857ca681/FLAGd641585b3 [2019-10-13 21:06:49,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dd8fd8c/ce1c179c4b8f4c7d93c526d3857ca681 [2019-10-13 21:06:49,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:06:49,128 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:06:49,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:06:49,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:06:49,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:06:49,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3051b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49, skipping insertion in model container [2019-10-13 21:06:49,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,149 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:06:49,171 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:06:49,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:06:49,393 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:06:49,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:06:49,427 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:06:49,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49 WrapperNode [2019-10-13 21:06:49,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:06:49,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:06:49,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:06:49,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:06:49,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (1/1) ... [2019-10-13 21:06:49,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:06:49,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:06:49,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:06:49,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:06:49,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (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 [2019-10-13 21:06:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:06:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:06:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:06:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:06:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:06:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:06:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:06:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:06:49,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:06:49,825 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:06:49,825 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:06:49,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:06:49 BoogieIcfgContainer [2019-10-13 21:06:49,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:06:49,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:06:49,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:06:49,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:06:49,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:06:49" (1/3) ... [2019-10-13 21:06:49,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a82c1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:06:49, skipping insertion in model container [2019-10-13 21:06:49,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:49" (2/3) ... [2019-10-13 21:06:49,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a82c1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:06:49, skipping insertion in model container [2019-10-13 21:06:49,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:06:49" (3/3) ... [2019-10-13 21:06:49,837 INFO L109 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2019-10-13 21:06:49,848 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:06:49,856 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:06:49,870 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:06:49,905 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:06:49,911 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:06:49,912 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:06:49,913 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:06:49,913 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:06:49,913 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:06:49,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:06:49,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:06:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-13 21:06:49,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:06:49,937 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:06:49,938 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:06:49,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:06:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:49,945 INFO L82 PathProgramCache]: Analyzing trace with hash -84144223, now seen corresponding path program 1 times [2019-10-13 21:06:49,952 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:06:49,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872350585] [2019-10-13 21:06:49,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:49,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:49,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:06:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:50,076 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872350585] [2019-10-13 21:06:50,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:06:50,078 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:06:50,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901367524] [2019-10-13 21:06:50,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:06:50,083 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:06:50,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:06:50,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:06:50,098 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-10-13 21:06:50,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:06:50,125 INFO L93 Difference]: Finished difference Result 47 states and 68 transitions. [2019-10-13 21:06:50,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:06:50,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-13 21:06:50,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:06:50,135 INFO L225 Difference]: With dead ends: 47 [2019-10-13 21:06:50,136 INFO L226 Difference]: Without dead ends: 22 [2019-10-13 21:06:50,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:06:50,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-13 21:06:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-13 21:06:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-13 21:06:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-10-13 21:06:50,186 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2019-10-13 21:06:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:06:50,186 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-10-13 21:06:50,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:06:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-10-13 21:06:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:06:50,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:06:50,188 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:06:50,188 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:06:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:50,189 INFO L82 PathProgramCache]: Analyzing trace with hash -89685349, now seen corresponding path program 1 times [2019-10-13 21:06:50,189 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:06:50,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152664735] [2019-10-13 21:06:50,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:50,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:50,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:06:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:50,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152664735] [2019-10-13 21:06:50,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:06:50,354 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:06:50,354 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184371788] [2019-10-13 21:06:50,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:06:50,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:06:50,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:06:50,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:06:50,357 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2019-10-13 21:06:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:06:50,401 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2019-10-13 21:06:50,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:06:50,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-13 21:06:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:06:50,404 INFO L225 Difference]: With dead ends: 48 [2019-10-13 21:06:50,404 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 21:06:50,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:06:50,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 21:06:50,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2019-10-13 21:06:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-13 21:06:50,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-10-13 21:06:50,413 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 14 [2019-10-13 21:06:50,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:06:50,414 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-10-13 21:06:50,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:06:50,414 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-10-13 21:06:50,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 21:06:50,416 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:06:50,416 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:06:50,416 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:06:50,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:50,417 INFO L82 PathProgramCache]: Analyzing trace with hash 374245081, now seen corresponding path program 1 times [2019-10-13 21:06:50,417 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:06:50,417 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344028817] [2019-10-13 21:06:50,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:50,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:50,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:06:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:50,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344028817] [2019-10-13 21:06:50,587 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106723936] [2019-10-13 21:06:50,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2019-10-13 21:06:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:50,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:06:50,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:06:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:50,713 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:06:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:50,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1391416473] [2019-10-13 21:06:50,776 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-10-13 21:06:50,814 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:06:50,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:06:50,879 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-13 21:06:51,206 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-13 21:06:51,209 INFO L272 AbstractInterpreter]: Visited 16 different actions 72 times. Merged at 3 different actions 24 times. Widened at 1 different actions 6 times. Performed 108 root evaluator evaluations with a maximum evaluation depth of 12. Performed 108 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2019-10-13 21:06:51,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:51,215 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 21:06:51,216 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:06:51,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2019-10-13 21:06:51,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632497993] [2019-10-13 21:06:51,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:06:51,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:06:51,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:06:51,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:06:51,222 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 7 states. [2019-10-13 21:06:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:06:51,330 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2019-10-13 21:06:51,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:06:51,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-10-13 21:06:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:06:51,333 INFO L225 Difference]: With dead ends: 54 [2019-10-13 21:06:51,333 INFO L226 Difference]: Without dead ends: 36 [2019-10-13 21:06:51,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:06:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-13 21:06:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2019-10-13 21:06:51,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-13 21:06:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-10-13 21:06:51,347 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 16 [2019-10-13 21:06:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:06:51,347 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-10-13 21:06:51,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:06:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-10-13 21:06:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-13 21:06:51,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:06:51,351 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:06:51,559 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:06:51,560 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:06:51,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:51,561 INFO L82 PathProgramCache]: Analyzing trace with hash -79001965, now seen corresponding path program 2 times [2019-10-13 21:06:51,562 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:06:51,562 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000221147] [2019-10-13 21:06:51,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:51,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:51,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:06:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:51,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000221147] [2019-10-13 21:06:51,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185222875] [2019-10-13 21:06:51,738 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/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 [2019-10-13 21:06:52,322 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-13 21:06:52,322 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:06:52,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:06:52,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:06:52,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:06:52,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:06:52,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:06:52,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:06:52,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:06:55,280 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2019-10-13 21:06:57,566 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-10-13 21:06:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 21:06:57,583 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:07:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 21:07:02,038 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:07:02,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [7] total 17 [2019-10-13 21:07:02,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920783750] [2019-10-13 21:07:02,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 21:07:02,039 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:07:02,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 21:07:02,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=202, Unknown=3, NotChecked=0, Total=272 [2019-10-13 21:07:02,040 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 12 states. [2019-10-13 21:07:05,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:07:05,366 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-10-13 21:07:05,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:07:05,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-10-13 21:07:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:07:05,367 INFO L225 Difference]: With dead ends: 36 [2019-10-13 21:07:05,368 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:07:05,369 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=82, Invalid=257, Unknown=3, NotChecked=0, Total=342 [2019-10-13 21:07:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:07:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:07:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:07:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:07:05,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-13 21:07:05,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:07:05,370 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:07:05,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 21:07:05,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:07:05,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:07:05,573 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:07:05,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:07:05,742 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-13 21:07:05,742 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:07:05,743 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:07:05,743 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:07:05,743 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:07:05,743 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:07:05,744 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2019-10-13 21:07:05,744 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 22) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-13 21:07:05,744 INFO L443 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2019-10-13 21:07:05,744 INFO L439 ceAbstractionStarter]: At program point L20-3(line 20) the Hoare annotation is: (or (and (<= main_~v~0 0) (< 0 (+ (div main_~v~0 4294967296) 1))) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-13 21:07:05,745 INFO L439 ceAbstractionStarter]: At program point L20-4(line 20) the Hoare annotation is: (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-13 21:07:05,745 INFO L443 ceAbstractionStarter]: For program point L16-2(lines 16 22) no Hoare annotation was computed. [2019-10-13 21:07:05,745 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 22) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-13 21:07:05,745 INFO L443 ceAbstractionStarter]: For program point L16-4(lines 10 23) no Hoare annotation was computed. [2019-10-13 21:07:05,745 INFO L443 ceAbstractionStarter]: For program point L21(lines 19 22) no Hoare annotation was computed. [2019-10-13 21:07:05,745 INFO L443 ceAbstractionStarter]: For program point L17-2(lines 17 22) no Hoare annotation was computed. [2019-10-13 21:07:05,746 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-13 21:07:05,746 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2019-10-13 21:07:05,746 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2019-10-13 21:07:05,746 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-13 21:07:05,747 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 21:07:05,747 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 21:07:05,747 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:07:05,747 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 21:07:05,747 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 21:07:05,747 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:07:05,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:07:05 BoogieIcfgContainer [2019-10-13 21:07:05,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:07:05,765 INFO L168 Benchmark]: Toolchain (without parser) took 16637.12 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 102.8 MB in the beginning and 92.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 106.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:05,766 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:07:05,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.77 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 93.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:05,769 INFO L168 Benchmark]: Boogie Preprocessor took 120.46 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 93.1 MB in the beginning and 180.2 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:05,770 INFO L168 Benchmark]: RCFGBuilder took 278.10 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 166.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:05,771 INFO L168 Benchmark]: TraceAbstraction took 15934.95 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.2 MB in the beginning and 92.6 MB in the end (delta: 73.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:05,775 INFO L335 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 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 298.77 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 93.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.46 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 93.1 MB in the beginning and 180.2 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 278.10 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 166.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15934.95 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.2 MB in the beginning and 92.6 MB in the end (delta: 73.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 20]: Loop Invariant Derived loop invariant: (v <= 0 && 0 < v / 4294967296 + 1) || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 15.8s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 106 SDtfs, 63 SDslu, 254 SDs, 0 SdLazy, 79 SolverSat, 14 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=3, 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, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 28 NumberOfFragments, 89 HoareAnnotationTreeSize, 14 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 104 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 134 ConstructedInterpolants, 2 QuantifiedInterpolants, 6939 SizeOfPredicates, 4 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 32/51 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...