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/loop-new/gauss_sum.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:03:09,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:03:09,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:03:09,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:03:09,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:03:09,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:03:09,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:03:09,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:03:09,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:03:09,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:03:09,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:03:09,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:03:09,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:03:09,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:03:09,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:03:09,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:03:09,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:03:09,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:03:09,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:03:09,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:03:09,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:03:09,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:03:09,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:03:09,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:03:09,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:03:09,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:03:09,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:03:09,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:03:09,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:03:09,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:03:09,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:03:09,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:03:09,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:03:09,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:03:09,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:03:09,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:03:09,866 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 [2019-10-15 03:03:09,881 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:03:09,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:03:09,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:03:09,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:03:09,883 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:03:09,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:03:09,883 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:03:09,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:03:09,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:03:09,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:03:09,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:03:09,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:03:09,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:03:09,885 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:03:09,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:03:09,885 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:03:09,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:03:09,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:03:09,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:03:09,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:03:09,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:03:09,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:03:09,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:03:09,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:03:09,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:03:09,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:03:09,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:03:09,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:03:09,888 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 [2019-10-15 03:03:10,172 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:03:10,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:03:10,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:03:10,197 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:03:10,198 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:03:10,201 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.v+cfa-reducer.c [2019-10-15 03:03:10,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0148ba5de/d05cf0a752cd4a92b39fc15995a463e8/FLAG510cc7bbc [2019-10-15 03:03:10,717 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:03:10,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.v+cfa-reducer.c [2019-10-15 03:03:10,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0148ba5de/d05cf0a752cd4a92b39fc15995a463e8/FLAG510cc7bbc [2019-10-15 03:03:11,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0148ba5de/d05cf0a752cd4a92b39fc15995a463e8 [2019-10-15 03:03:11,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:03:11,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:03:11,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:11,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:03:11,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:03:11,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f90b4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11, skipping insertion in model container [2019-10-15 03:03:11,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,145 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:03:11,164 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:03:11,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:11,347 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:03:11,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:11,390 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:03:11,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11 WrapperNode [2019-10-15 03:03:11,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:11,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:03:11,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:03:11,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:03:11,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (1/1) ... [2019-10-15 03:03:11,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:03:11,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:03:11,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:03:11,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:03:11,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (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 [2019-10-15 03:03:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:03:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:03:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:03:11,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:03:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:03:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:03:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:03:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:03:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:03:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:03:11,749 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:03:11,749 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 03:03:11,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:11 BoogieIcfgContainer [2019-10-15 03:03:11,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:03:11,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:03:11,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:03:11,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:03:11,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:03:11" (1/3) ... [2019-10-15 03:03:11,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a2024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:11, skipping insertion in model container [2019-10-15 03:03:11,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:11" (2/3) ... [2019-10-15 03:03:11,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a2024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:11, skipping insertion in model container [2019-10-15 03:03:11,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:11" (3/3) ... [2019-10-15 03:03:11,759 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2019-10-15 03:03:11,769 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:03:11,776 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:03:11,786 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:03:11,814 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:03:11,814 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:03:11,814 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:03:11,815 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:03:11,815 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:03:11,815 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:03:11,815 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:03:11,815 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:03:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-15 03:03:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:03:11,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:11,842 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:11,843 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:11,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1330646415, now seen corresponding path program 1 times [2019-10-15 03:03:11,857 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:11,857 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363309996] [2019-10-15 03:03:11,858 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:11,858 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:11,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:11,947 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 03:03:11,948 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388813047] [2019-10-15 03:03:11,948 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 [2019-10-15 03:03:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:12,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:03:12,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:12,094 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:12,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363309996] [2019-10-15 03:03:12,134 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 03:03:12,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388813047] [2019-10-15 03:03:12,139 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:03:12,140 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-10-15 03:03:12,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441656797] [2019-10-15 03:03:12,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:03:12,154 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:12,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:03:12,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:03:12,179 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-10-15 03:03:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:12,260 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-10-15 03:03:12,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:03:12,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-15 03:03:12,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:12,273 INFO L225 Difference]: With dead ends: 25 [2019-10-15 03:03:12,273 INFO L226 Difference]: Without dead ends: 12 [2019-10-15 03:03:12,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:03:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-15 03:03:12,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-15 03:03:12,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-15 03:03:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-15 03:03:12,319 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-15 03:03:12,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:12,320 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-15 03:03:12,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:03:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-15 03:03:12,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:03:12,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:12,321 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:12,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:12,527 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:12,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:12,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1699571622, now seen corresponding path program 1 times [2019-10-15 03:03:12,529 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:12,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392974384] [2019-10-15 03:03:12,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:12,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:12,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:12,553 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 03:03:12,553 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144764554] [2019-10-15 03:03:12,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-15 03:03:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:12,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-15 03:03:12,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:12,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:12,701 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:12,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:12,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392974384] [2019-10-15 03:03:12,930 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 03:03:12,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144764554] [2019-10-15 03:03:12,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [685818538] [2019-10-15 03:03:12,959 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:03:12,960 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:12,967 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:12,977 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:12,978 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:13,189 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-10-15 03:03:13,664 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-15 03:03:13,674 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:14,707 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2019-10-15 03:03:15,893 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-10-15 03:03:15,895 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-15 03:03:15,895 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 18 [2019-10-15 03:03:15,896 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301447842] [2019-10-15 03:03:15,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 03:03:15,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:15,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 03:03:15,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:03:15,900 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 18 states. [2019-10-15 03:03:17,606 WARN L191 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2019-10-15 03:03:17,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:17,615 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-10-15 03:03:17,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 03:03:17,616 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 11 [2019-10-15 03:03:17,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:17,617 INFO L225 Difference]: With dead ends: 16 [2019-10-15 03:03:17,617 INFO L226 Difference]: Without dead ends: 13 [2019-10-15 03:03:17,619 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2019-10-15 03:03:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-15 03:03:17,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-15 03:03:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-15 03:03:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-15 03:03:17,623 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-10-15 03:03:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:17,623 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-15 03:03:17,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 03:03:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-15 03:03:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 03:03:17,624 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:17,624 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:17,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:17,828 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:17,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1147050257, now seen corresponding path program 2 times [2019-10-15 03:03:17,829 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:17,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487588669] [2019-10-15 03:03:17,829 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:17,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:17,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:17,837 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 03:03:17,838 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404812407] [2019-10-15 03:03:17,838 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:17,874 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-15 03:03:17,875 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:03:17,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-15 03:03:17,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:17,929 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:03:18,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487588669] [2019-10-15 03:03:18,133 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 03:03:18,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404812407] [2019-10-15 03:03:18,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2013404483] [2019-10-15 03:03:18,136 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:03:18,136 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:18,137 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:18,137 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:18,137 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:18,181 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 12 for LOIs [2019-10-15 03:03:18,481 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-15 03:03:18,491 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:19,656 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2019-10-15 03:03:20,182 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-10-15 03:03:20,183 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-15 03:03:20,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 8] total 17 [2019-10-15 03:03:20,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652416751] [2019-10-15 03:03:20,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 03:03:20,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:20,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 03:03:20,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=215, Unknown=1, NotChecked=0, Total=272 [2019-10-15 03:03:20,187 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 17 states. [2019-10-15 03:03:20,660 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2019-10-15 03:03:20,836 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2019-10-15 03:03:20,963 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2019-10-15 03:03:21,511 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2019-10-15 03:03:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:21,513 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-10-15 03:03:21,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 03:03:21,514 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 12 [2019-10-15 03:03:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:21,514 INFO L225 Difference]: With dead ends: 15 [2019-10-15 03:03:21,514 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:03:21,516 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=172, Invalid=476, Unknown=2, NotChecked=0, Total=650 [2019-10-15 03:03:21,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:03:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:03:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:03:21,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:03:21,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-10-15 03:03:21,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:21,518 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:03:21,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 03:03:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:03:21,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:03:21,722 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:21,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:03:26,338 WARN L191 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2019-10-15 03:03:26,345 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_60~0)| ~__return_60~0)) [2019-10-15 03:03:26,346 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:26,346 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:26,346 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~__return_60~0) (= ~__return_main~0 0)) [2019-10-15 03:03:26,346 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:03:26,346 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:03:26,347 INFO L439 ceAbstractionStarter]: At program point L33(lines 25 54) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (and (<= main_~main__n~0 1000) (<= 1 main_~main__i~0) (<= 1 main_~main__n~0) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* 2 main_~main__sum~0)) (<= main_~main__i~0 main_~main__n~0)) (forall ((main_~main__n~0 Int)) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 main_~main__sum~0) (* 2 main_~main__i~0))) (< main_~main__i~0 main_~main__n~0) (< main_~main__n~0 main_~main__i~0))) (= |old(~__return_60~0)| ~__return_60~0)) (not (= |old(~__return_60~0)| 0))) [2019-10-15 03:03:26,347 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 56) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (= |old(~__return_60~0)| ~__return_60~0) (not (= |old(~__return_60~0)| 0))) [2019-10-15 03:03:26,347 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 56) no Hoare annotation was computed. [2019-10-15 03:03:26,347 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 54) no Hoare annotation was computed. [2019-10-15 03:03:26,347 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 55) no Hoare annotation was computed. [2019-10-15 03:03:26,347 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-15 03:03:26,348 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 56) no Hoare annotation was computed. [2019-10-15 03:03:26,348 INFO L443 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-10-15 03:03:26,348 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 51) no Hoare annotation was computed. [2019-10-15 03:03:26,354 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,355 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,356 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,356 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:03:26 BoogieIcfgContainer [2019-10-15 03:03:26,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:03:26,371 INFO L168 Benchmark]: Toolchain (without parser) took 15244.32 ms. Allocated memory was 137.9 MB in the beginning and 247.5 MB in the end (delta: 109.6 MB). Free memory was 103.0 MB in the beginning and 104.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:26,372 INFO L168 Benchmark]: CDTParser took 0.21 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 03:03:26,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.64 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:26,374 INFO L168 Benchmark]: Boogie Preprocessor took 111.97 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 93.2 MB in the beginning and 181.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:26,375 INFO L168 Benchmark]: RCFGBuilder took 245.84 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 169.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:26,376 INFO L168 Benchmark]: TraceAbstraction took 14617.63 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 169.8 MB in the beginning and 104.4 MB in the end (delta: 65.4 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:26,380 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.64 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.97 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 93.2 MB in the beginning and 181.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 245.84 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 169.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14617.63 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 169.8 MB in the beginning and 104.4 MB in the end (delta: 65.4 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 25]: Loop Invariant [2019-10-15 03:03:26,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,391 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-15 03:03:26,391 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] Derived loop invariant: (!(0 == __return_main) || (((((main__n <= 1000 && 1 <= main__i) && 1 <= main__n) && (main__n * (main__n + 1) == 2 * main__sum || main__i <= main__n)) && (forall main_~main__n~0 : int :: (main_~main__n~0 * (main_~main__n~0 + 1) == 2 * main__sum + 2 * main__i || main__i < main_~main__n~0) || main_~main__n~0 < main__i)) && \old(__return_60) == __return_60)) || !(\old(__return_60) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 14.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, HoareTripleCheckerStatistics: 26 SDtfs, 74 SDslu, 66 SDs, 0 SdLazy, 120 SolverSat, 37 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 83 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 2 QuantifiedInterpolants, 2244 SizeOfPredicates, 14 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 1071, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 40, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME[ms]: 39, TOOLS_POST_CALL_APPLICATIONS: 8, TOOLS_POST_CALL_TIME[ms]: 16, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 4, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 35, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 5, FLUID_QUERY_TIME[ms]: 8, FLUID_QUERIES: 46, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 36, DOMAIN_JOIN_TIME[ms]: 658, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 199, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 29, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 4, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 425, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 421, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 63, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 63, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 36, DAG_COMPRESSION_PROCESSED_NODES: 124, DAG_COMPRESSION_RETAINED_NODES: 74, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...