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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:40:20,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:40:20,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:40:20,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:40:20,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:40:20,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:40:20,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:40:20,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:40:20,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:40:20,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:40:20,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:40:20,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:40:20,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:40:20,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:40:20,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:40:20,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:40:20,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:40:20,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:40:20,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:40:20,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:40:20,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:40:20,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:40:20,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:40:20,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:40:20,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:40:20,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:40:20,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:40:20,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:40:20,801 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 21:40:20,817 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:40:20,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:40:20,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:40:20,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:40:20,819 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:40:20,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:40:20,819 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:40:20,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:40:20,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:40:20,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:40:20,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:40:20,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:40:20,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:40:20,821 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:40:20,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:40:20,821 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:40:20,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:40:20,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:40:20,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:40:20,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:40:20,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:40:20,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:40:20,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:40:20,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:40:20,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:40:20,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:40:20,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:40:20,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:40:20,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 21:40:21,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:40:21,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:40:21,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:40:21,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:40:21,139 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:40:21,139 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label24.c [2019-10-13 21:40:21,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8297f49/1cc0717ae4314649bbb5bbd5eea8bf42/FLAG5212529a0 [2019-10-13 21:40:21,816 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:40:21,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label24.c [2019-10-13 21:40:21,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8297f49/1cc0717ae4314649bbb5bbd5eea8bf42/FLAG5212529a0 [2019-10-13 21:40:22,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8297f49/1cc0717ae4314649bbb5bbd5eea8bf42 [2019-10-13 21:40:22,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:40:22,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:40:22,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:40:22,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:40:22,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:40:22,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3534b1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22, skipping insertion in model container [2019-10-13 21:40:22,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,049 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:40:22,113 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:40:22,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:40:22,592 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:40:22,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:40:22,743 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:40:22,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22 WrapperNode [2019-10-13 21:40:22,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:40:22,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:40:22,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:40:22,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:40:22,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (1/1) ... [2019-10-13 21:40:22,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:40:22,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:40:22,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:40:22,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:40:22,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (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 21:40:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:40:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:40:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 21:40:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:40:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 21:40:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:40:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:40:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:40:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:40:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:40:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:40:24,833 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:40:24,837 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 21:40:24,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:40:24 BoogieIcfgContainer [2019-10-13 21:40:24,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:40:24,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:40:24,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:40:24,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:40:24,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:40:22" (1/3) ... [2019-10-13 21:40:24,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e397276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:40:24, skipping insertion in model container [2019-10-13 21:40:24,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:22" (2/3) ... [2019-10-13 21:40:24,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e397276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:40:24, skipping insertion in model container [2019-10-13 21:40:24,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:40:24" (3/3) ... [2019-10-13 21:40:24,856 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label24.c [2019-10-13 21:40:24,871 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:40:24,882 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:40:24,894 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:40:24,929 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:40:24,929 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:40:24,931 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:40:24,931 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:40:24,931 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:40:24,931 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:40:24,932 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:40:24,932 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:40:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-13 21:40:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-13 21:40:24,979 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:40:24,981 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:40:24,982 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:40:24,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:40:24,987 INFO L82 PathProgramCache]: Analyzing trace with hash 826817892, now seen corresponding path program 1 times [2019-10-13 21:40:24,995 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:40:24,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811319960] [2019-10-13 21:40:24,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:24,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:24,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:40:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:40:25,491 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 21:40:25,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811319960] [2019-10-13 21:40:25,493 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:40:25,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:40:25,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131076617] [2019-10-13 21:40:25,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:40:25,502 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:40:25,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:40:25,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:40:25,520 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 4 states. [2019-10-13 21:40:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:40:26,342 INFO L93 Difference]: Finished difference Result 325 states and 606 transitions. [2019-10-13 21:40:26,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:40:26,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2019-10-13 21:40:26,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:40:26,360 INFO L225 Difference]: With dead ends: 325 [2019-10-13 21:40:26,361 INFO L226 Difference]: Without dead ends: 232 [2019-10-13 21:40:26,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:40:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-13 21:40:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 157. [2019-10-13 21:40:26,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-13 21:40:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2019-10-13 21:40:26,432 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 77 [2019-10-13 21:40:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:40:26,433 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2019-10-13 21:40:26,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:40:26,434 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2019-10-13 21:40:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 21:40:26,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:40:26,439 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:40:26,439 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:40:26,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:40:26,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1195668741, now seen corresponding path program 1 times [2019-10-13 21:40:26,440 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:40:26,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767860889] [2019-10-13 21:40:26,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:26,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:26,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:40:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:40:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:40:26,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767860889] [2019-10-13 21:40:26,603 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:40:26,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:40:26,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109407237] [2019-10-13 21:40:26,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:40:26,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:40:26,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:40:26,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:40:26,607 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand 6 states. [2019-10-13 21:40:27,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:40:27,272 INFO L93 Difference]: Finished difference Result 479 states and 882 transitions. [2019-10-13 21:40:27,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:40:27,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-10-13 21:40:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:40:27,280 INFO L225 Difference]: With dead ends: 479 [2019-10-13 21:40:27,280 INFO L226 Difference]: Without dead ends: 327 [2019-10-13 21:40:27,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:40:27,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-10-13 21:40:27,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 315. [2019-10-13 21:40:27,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-10-13 21:40:27,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 558 transitions. [2019-10-13 21:40:27,325 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 558 transitions. Word has length 87 [2019-10-13 21:40:27,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:40:27,325 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 558 transitions. [2019-10-13 21:40:27,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:40:27,326 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 558 transitions. [2019-10-13 21:40:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 21:40:27,331 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:40:27,331 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:40:27,331 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:40:27,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:40:27,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2128690345, now seen corresponding path program 1 times [2019-10-13 21:40:27,332 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:40:27,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218808072] [2019-10-13 21:40:27,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:27,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:27,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:40:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:40:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:40:27,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218808072] [2019-10-13 21:40:27,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346021189] [2019-10-13 21:40:27,508 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 21:40:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:40:27,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:40:27,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:40:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:40:27,739 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:40:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:40:27,802 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:40:27,802 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2019-10-13 21:40:27,803 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545845202] [2019-10-13 21:40:27,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:40:27,806 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:40:27,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:40:27,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:40:27,807 INFO L87 Difference]: Start difference. First operand 315 states and 558 transitions. Second operand 3 states. [2019-10-13 21:40:28,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:40:28,265 INFO L93 Difference]: Finished difference Result 775 states and 1394 transitions. [2019-10-13 21:40:28,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:40:28,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2019-10-13 21:40:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:40:28,272 INFO L225 Difference]: With dead ends: 775 [2019-10-13 21:40:28,272 INFO L226 Difference]: Without dead ends: 465 [2019-10-13 21:40:28,275 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:40:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-10-13 21:40:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2019-10-13 21:40:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-10-13 21:40:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 792 transitions. [2019-10-13 21:40:28,354 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 792 transitions. Word has length 88 [2019-10-13 21:40:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:40:28,354 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 792 transitions. [2019-10-13 21:40:28,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:40:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 792 transitions. [2019-10-13 21:40:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 21:40:28,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:40:28,358 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:40:28,563 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:40:28,564 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:40:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:40:28,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1557874255, now seen corresponding path program 1 times [2019-10-13 21:40:28,565 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:40:28,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216309038] [2019-10-13 21:40:28,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:28,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:40:28,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:40:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:40:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:40:28,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216309038] [2019-10-13 21:40:28,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:40:28,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:40:28,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112007571] [2019-10-13 21:40:28,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:40:28,699 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:40:28,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:40:28,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:40:28,700 INFO L87 Difference]: Start difference. First operand 465 states and 792 transitions. Second operand 4 states. [2019-10-13 21:40:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:40:29,402 INFO L93 Difference]: Finished difference Result 1300 states and 2275 transitions. [2019-10-13 21:40:29,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:40:29,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2019-10-13 21:40:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:40:29,404 INFO L225 Difference]: With dead ends: 1300 [2019-10-13 21:40:29,404 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:40:29,410 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:40:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:40:29,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:40:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:40:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:40:29,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2019-10-13 21:40:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:40:29,412 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:40:29,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:40:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:40:29,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:40:29,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:40:29,658 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-10-13 21:40:29,741 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~a16~0 |old(~a16~0)|) [2019-10-13 21:40:29,741 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:40:29,741 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 470) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-13 21:40:29,742 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-10-13 21:40:29,743 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-13 21:40:29,743 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-13 21:40:29,743 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-10-13 21:40:29,743 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-13 21:40:29,743 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-13 21:40:29,743 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-13 21:40:29,743 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-13 21:40:29,744 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-13 21:40:29,744 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-13 21:40:29,744 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-13 21:40:29,744 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-13 21:40:29,744 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-13 21:40:29,744 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-13 21:40:29,744 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-13 21:40:29,745 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-13 21:40:29,745 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-13 21:40:29,745 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-13 21:40:29,745 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-13 21:40:29,745 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-13 21:40:29,745 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-13 21:40:29,745 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-13 21:40:29,746 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-13 21:40:29,746 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-13 21:40:29,746 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-13 21:40:29,746 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-10-13 21:40:29,746 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-10-13 21:40:29,746 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-13 21:40:29,746 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-13 21:40:29,747 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-13 21:40:29,748 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-13 21:40:29,748 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-13 21:40:29,748 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-13 21:40:29,748 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-13 21:40:29,748 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-13 21:40:29,748 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-13 21:40:29,748 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-13 21:40:29,749 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a16~0 |old(~a16~0)|))) (and (or (and (= 13 ~a8~0) .cse0) (not (= 13 |old(~a8~0)|))) (or (and .cse0 (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0)))) (and (= |old(~a7~0)| |old(~a20~0)|) (= 1 |old(~a20~0)|))) (or (= 6 |old(~a16~0)|) (and .cse0 (not (= 15 ~a8~0))) (= 15 |old(~a8~0)|)))) [2019-10-13 21:40:29,749 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-13 21:40:29,749 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-13 21:40:29,749 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-13 21:40:29,749 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-13 21:40:29,750 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-13 21:40:29,750 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-13 21:40:29,750 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-13 21:40:29,750 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-13 21:40:29,750 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-13 21:40:29,750 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-13 21:40:29,750 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-13 21:40:29,751 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-13 21:40:29,751 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-13 21:40:29,751 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-13 21:40:29,751 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-13 21:40:29,751 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-13 21:40:29,751 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-13 21:40:29,751 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-13 21:40:29,752 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-13 21:40:29,752 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-13 21:40:29,752 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:40:29,752 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= ~a20~0 ~a7~0))) [2019-10-13 21:40:29,752 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:40:29,752 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:40:29,753 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= |old(~a7~0)| |old(~a20~0)|) (and (= ~a16~0 |old(~a16~0)|) (not (= ~a20~0 ~a7~0)))) [2019-10-13 21:40:29,753 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-10-13 21:40:29,753 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 ~a8~0) (and (not (= 15 ~a8~0)) (not (= ~a16~0 6))) (= |old(~a7~0)| |old(~a20~0)|) (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) [2019-10-13 21:40:29,754 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-10-13 21:40:29,754 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-13 21:40:29,754 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 ~a8~0) (and (not (= 15 ~a8~0)) (not (= ~a16~0 6))) (= |old(~a7~0)| |old(~a20~0)|) (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) [2019-10-13 21:40:29,754 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-10-13 21:40:29,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:40:29 BoogieIcfgContainer [2019-10-13 21:40:29,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:40:29,791 INFO L168 Benchmark]: Toolchain (without parser) took 7763.23 ms. Allocated memory was 146.8 MB in the beginning and 312.5 MB in the end (delta: 165.7 MB). Free memory was 103.6 MB in the beginning and 269.0 MB in the end (delta: -165.4 MB). Peak memory consumption was 151.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:40:29,792 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:40:29,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.81 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 103.4 MB in the beginning and 172.7 MB in the end (delta: -69.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:40:29,796 INFO L168 Benchmark]: Boogie Preprocessor took 109.73 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:40:29,801 INFO L168 Benchmark]: RCFGBuilder took 1984.09 ms. Allocated memory was 206.6 MB in the beginning and 249.6 MB in the end (delta: 43.0 MB). Free memory was 167.9 MB in the beginning and 207.5 MB in the end (delta: -39.5 MB). Peak memory consumption was 113.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:40:29,802 INFO L168 Benchmark]: TraceAbstraction took 4948.24 ms. Allocated memory was 249.6 MB in the beginning and 312.5 MB in the end (delta: 62.9 MB). Free memory was 207.5 MB in the beginning and 269.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 152.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:40:29,812 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.81 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 103.4 MB in the beginning and 172.7 MB in the end (delta: -69.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.73 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1984.09 ms. Allocated memory was 206.6 MB in the beginning and 249.6 MB in the end (delta: 43.0 MB). Free memory was 167.9 MB in the beginning and 207.5 MB in the end (delta: -39.5 MB). Peak memory consumption was 113.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4948.24 ms. Allocated memory was 249.6 MB in the beginning and 312.5 MB in the end (delta: 62.9 MB). Free memory was 207.5 MB in the beginning and 269.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 152.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 470]: 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: 583]: Loop Invariant Derived loop invariant: ((((6 == \old(a16) || 13 == a8) || (!(15 == a8) && !(a16 == 6))) || \old(a7) == \old(a20)) || !(1 == a7)) || !(a20 == a7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 4.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 351 SDtfs, 490 SDslu, 101 SDs, 0 SdLazy, 1335 SolverSat, 404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=465occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 87 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 30 PreInvPairs, 52 NumberOfFragments, 131 HoareAnnotationTreeSize, 30 FomulaSimplifications, 572 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 320 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 432 NumberOfCodeBlocks, 432 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 514 ConstructedInterpolants, 0 QuantifiedInterpolants, 158355 SizeOfPredicates, 2 NumberOfNonLiveVariables, 350 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 38/43 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...