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/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:43:39,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:43:39,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:43:39,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:43:39,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:43:39,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:43:39,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:43:39,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:43:39,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:43:39,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:43:39,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:43:39,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:43:39,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:43:39,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:43:39,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:43:39,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:43:39,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:43:39,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:43:39,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:43:39,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:43:39,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:43:39,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:43:39,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:43:39,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:43:39,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:43:39,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:43:39,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:43:39,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:43:39,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:43:39,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:43:39,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:43:39,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:43:39,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:43:39,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:43:39,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:43:39,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:43:39,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:43:39,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:43:39,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:43:39,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:43:39,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:43:39,859 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 [2019-10-07 13:43:39,873 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:43:39,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:43:39,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:43:39,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:43:39,874 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:43:39,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:43:39,875 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:43:39,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:43:39,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:43:39,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:43:39,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:43:39,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:43:39,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:43:39,876 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:43:39,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:43:39,877 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:43:39,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:43:39,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:43:39,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:43:39,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:43:39,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:43:39,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:43:39,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:43:39,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:43:39,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:43:39,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:43:39,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:43:39,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:43:39,879 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 [2019-10-07 13:43:40,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:43:40,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:43:40,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:43:40,162 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:43:40,162 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:43:40,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-07 13:43:40,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ffb85ee6/a3cacae1441241768b9737d073a18edc/FLAG71c7fbe8b [2019-10-07 13:43:40,633 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:43:40,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-07 13:43:40,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ffb85ee6/a3cacae1441241768b9737d073a18edc/FLAG71c7fbe8b [2019-10-07 13:43:40,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ffb85ee6/a3cacae1441241768b9737d073a18edc [2019-10-07 13:43:40,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:43:40,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:43:40,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:43:40,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:43:41,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:43:41,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:43:40" (1/1) ... [2019-10-07 13:43:41,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34930f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41, skipping insertion in model container [2019-10-07 13:43:41,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:43:40" (1/1) ... [2019-10-07 13:43:41,012 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:43:41,031 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:43:41,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:43:41,185 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:43:41,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:43:41,214 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:43:41,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41 WrapperNode [2019-10-07 13:43:41,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:43:41,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:43:41,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:43:41,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:43:41,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (1/1) ... [2019-10-07 13:43:41,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (1/1) ... [2019-10-07 13:43:41,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (1/1) ... [2019-10-07 13:43:41,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (1/1) ... [2019-10-07 13:43:41,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (1/1) ... [2019-10-07 13:43:41,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (1/1) ... [2019-10-07 13:43:41,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (1/1) ... [2019-10-07 13:43:41,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:43:41,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:43:41,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:43:41,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:43:41,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (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 [2019-10-07 13:43:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:43:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:43:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:43:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:43:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:43:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:43:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:43:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:43:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:43:41,799 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:43:41,799 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 13:43:41,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:43:41 BoogieIcfgContainer [2019-10-07 13:43:41,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:43:41,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:43:41,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:43:41,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:43:41,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:43:40" (1/3) ... [2019-10-07 13:43:41,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5010c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:43:41, skipping insertion in model container [2019-10-07 13:43:41,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:41" (2/3) ... [2019-10-07 13:43:41,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5010c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:43:41, skipping insertion in model container [2019-10-07 13:43:41,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:43:41" (3/3) ... [2019-10-07 13:43:41,813 INFO L109 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2019-10-07 13:43:41,825 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:43:41,835 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:43:41,848 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:43:41,884 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:43:41,884 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:43:41,884 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:43:41,885 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:43:41,887 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:43:41,887 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:43:41,887 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:43:41,887 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:43:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-07 13:43:41,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-07 13:43:41,922 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:43:41,924 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:43:41,926 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:43:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:43:41,933 INFO L82 PathProgramCache]: Analyzing trace with hash -46279862, now seen corresponding path program 1 times [2019-10-07 13:43:41,942 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:43:41,942 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:41,942 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:41,943 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:43:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:43:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:43:42,221 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:42,221 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:43:42,222 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:43:42,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:43:42,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:43:42,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:43:42,241 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-10-07 13:43:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:43:42,276 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2019-10-07 13:43:42,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:43:42,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-07 13:43:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:43:42,287 INFO L225 Difference]: With dead ends: 43 [2019-10-07 13:43:42,287 INFO L226 Difference]: Without dead ends: 23 [2019-10-07 13:43:42,291 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:43:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-07 13:43:42,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2019-10-07 13:43:42,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-07 13:43:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-10-07 13:43:42,333 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 14 [2019-10-07 13:43:42,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:43:42,333 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-10-07 13:43:42,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:43:42,334 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-07 13:43:42,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 13:43:42,335 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:43:42,335 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:43:42,336 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:43:42,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:43:42,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1515501576, now seen corresponding path program 1 times [2019-10-07 13:43:42,337 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:43:42,337 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:42,337 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:42,337 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:42,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:43:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:43:42,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:43:42,442 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:42,443 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:43:42,445 INFO L95 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 [2019-10-07 13:43:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:43:42,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 13:43:42,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:43:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:43:42,549 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:43:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:43:42,586 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:43:42,612 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 13:43:42,613 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:43:42,620 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:43:42,629 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:43:42,630 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:43:42,726 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-07 13:43:43,161 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2019-10-07 13:43:43,176 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-07 13:43:43,180 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 13:43:43,180 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 13:43:43,181 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 120#true [2019-10-07 13:43:43,181 INFO L193 IcfgInterpreter]: Reachable states at location L16-3 satisfy 38#(and (= main_~y~0 0) (<= main_~v~0 0) (= main_~w~0 0) (<= 0 main_~y~0) (<= 0 main_~v~0) (<= main_~x~0 0) (<= 0 main_~x~0) (= main_~v~0 0) (= main_~x~0 0) (<= main_~w~0 0) (<= 0 main_~z~0) (<= main_~z~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) [2019-10-07 13:43:43,181 INFO L193 IcfgInterpreter]: Reachable states at location L17-3 satisfy 43#(and (= main_~y~0 0) (<= main_~v~0 0) (= main_~w~0 0) (<= 0 main_~y~0) (<= 0 main_~v~0) (<= main_~x~0 0) (<= 0 main_~x~0) (< (mod main_~w~0 4294967296) 268435455) (= main_~v~0 0) (= main_~x~0 0) (<= main_~w~0 0) (<= 0 main_~z~0) (<= main_~z~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) [2019-10-07 13:43:43,182 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 106#(and (exists ((v_main_~v~0_BEFORE_CALL_1 Int)) (or (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) |__VERIFIER_assert_#in~cond|) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (+ (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) (- 4294967296))) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647)) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 13:43:43,182 INFO L193 IcfgInterpreter]: Reachable states at location L18-3 satisfy 48#(and (= main_~y~0 0) (<= main_~v~0 0) (= main_~w~0 0) (<= 0 main_~y~0) (<= 0 main_~v~0) (<= main_~x~0 0) (<= 0 main_~x~0) (< (mod main_~w~0 4294967296) 268435455) (= main_~v~0 0) (= main_~x~0 0) (<= main_~w~0 0) (<= 0 main_~z~0) (<= main_~z~0 0) (<= 0 main_~w~0) (< (mod main_~x~0 4294967296) 10) (= main_~z~0 0) (<= main_~y~0 0)) [2019-10-07 13:43:43,182 INFO L193 IcfgInterpreter]: Reachable states at location L20-4 satisfy 96#(and (= main_~y~0 0) (= main_~w~0 0) (<= 0 main_~y~0) (not (< (mod main_~v~0 4294967296) 10)) (<= 0 main_~v~0) (<= main_~x~0 0) (<= 0 main_~x~0) (= main_~x~0 0) (<= main_~w~0 0) (<= 0 main_~z~0) (<= main_~z~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) [2019-10-07 13:43:43,183 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-07 13:43:43,183 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-07 13:43:43,183 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 125#true [2019-10-07 13:43:43,184 INFO L193 IcfgInterpreter]: Reachable states at location L19-2 satisfy 53#(and (= main_~y~0 0) (< (mod main_~y~0 4294967296) 10) (<= main_~v~0 0) (= main_~w~0 0) (<= 0 main_~y~0) (<= 0 main_~v~0) (<= main_~x~0 0) (<= 0 main_~x~0) (< (mod main_~w~0 4294967296) 268435455) (= main_~v~0 0) (= main_~x~0 0) (<= main_~w~0 0) (<= 0 main_~z~0) (<= main_~z~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (< (mod main_~x~0 4294967296) 10) (<= main_~y~0 0)) [2019-10-07 13:43:43,184 INFO L193 IcfgInterpreter]: Reachable states at location L20-3 satisfy 91#(and (= main_~y~0 0) (= main_~w~0 0) (<= 0 main_~y~0) (<= 0 main_~v~0) (<= main_~x~0 0) (<= 0 main_~x~0) (= main_~x~0 0) (<= main_~w~0 0) (<= 0 main_~z~0) (<= main_~z~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) [2019-10-07 13:43:43,184 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 13:43:43,185 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 111#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_main_~v~0_BEFORE_CALL_1 Int)) (or (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) |__VERIFIER_assert_#in~cond|) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (+ (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) (- 4294967296))) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647)) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 13:43:43,185 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 101#(exists ((v_main_~v~0_BEFORE_CALL_1 Int)) (or (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) |__VERIFIER_assert_#in~cond|) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (+ (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) (- 4294967296))) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647)) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)))) [2019-10-07 13:43:43,186 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 116#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_main_~v~0_BEFORE_CALL_1 Int)) (or (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (= (+ (mod v_main_~v~0_BEFORE_CALL_1 4) (- 4294967296)) |__VERIFIER_assert_#in~cond|)) (and (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4)) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (mod v_main_~v~0_BEFORE_CALL_1 4)) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod v_main_~v~0_BEFORE_CALL_1 4) 2147483647)) (and (= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) |__VERIFIER_assert_#in~cond|) (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)) (and (not (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 10)) (= |__VERIFIER_assert_#in~cond| (+ (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) (- 4294967296))) (not (= 0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (<= 0 v_main_~v~0_BEFORE_CALL_1) (not (<= (mod (+ (mod v_main_~v~0_BEFORE_CALL_1 4) 4294967292) 4294967296) 2147483647)) (< (mod v_main_~v~0_BEFORE_CALL_1 4294967296) 0)))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 13:43:43,517 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 13:43:43,517 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 8] total 13 [2019-10-07 13:43:43,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-07 13:43:43,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-07 13:43:43,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-10-07 13:43:43,521 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 13 states. [2019-10-07 13:43:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:43:43,523 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-10-07 13:43:43,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 13:43:43,523 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2019-10-07 13:43:43,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:43:43,524 INFO L225 Difference]: With dead ends: 19 [2019-10-07 13:43:43,524 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:43:43,525 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-10-07 13:43:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:43:43,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:43:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:43:43,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:43:43,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-07 13:43:43,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:43:43,527 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:43:43,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-07 13:43:43,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:43:43,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:43:43,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:43:43,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:43:43,755 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:43:43,756 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:43:43,756 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:43:43,756 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-07 13:43:43,756 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:43:43,756 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:43:43,757 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2019-10-07 13:43:43,757 INFO L446 ceAbstractionStarter]: At program point L19-2(lines 19 22) the Hoare annotation is: true [2019-10-07 13:43:43,757 INFO L446 ceAbstractionStarter]: At program point L20-3(line 20) the Hoare annotation is: true [2019-10-07 13:43:43,757 INFO L446 ceAbstractionStarter]: At program point L20-4(line 20) the Hoare annotation is: true [2019-10-07 13:43:43,757 INFO L446 ceAbstractionStarter]: At program point L16-3(lines 16 22) the Hoare annotation is: true [2019-10-07 13:43:43,757 INFO L443 ceAbstractionStarter]: For program point L21(lines 19 22) no Hoare annotation was computed. [2019-10-07 13:43:43,758 INFO L446 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: true [2019-10-07 13:43:43,758 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2019-10-07 13:43:43,758 INFO L446 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: true [2019-10-07 13:43:43,758 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:43:43,758 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:43:43,758 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:43:43,759 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:43:43,759 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:43:43,759 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:43:43,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:43:43 BoogieIcfgContainer [2019-10-07 13:43:43,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:43:43,772 INFO L168 Benchmark]: Toolchain (without parser) took 2774.69 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 101.7 MB in the beginning and 151.1 MB in the end (delta: -49.3 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:43,773 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:43:43,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.27 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 92.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:43,775 INFO L168 Benchmark]: Boogie Preprocessor took 109.49 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 92.0 MB in the beginning and 180.2 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:43,775 INFO L168 Benchmark]: RCFGBuilder took 475.83 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 164.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:43,776 INFO L168 Benchmark]: TraceAbstraction took 1967.12 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 164.2 MB in the beginning and 151.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:43,780 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 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 218.27 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 92.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.49 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 92.0 MB in the beginning and 180.2 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.83 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 164.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1967.12 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 164.2 MB in the beginning and 151.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 7 SDslu, 26 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 11 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 1419 SizeOfPredicates, 1 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 574, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 25, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME[ms]: 29, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 21, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 21, TOOLS_QUANTIFIERELIM_TIME[ms]: 38, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 18, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 28, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 22, DOMAIN_JOIN_TIME[ms]: 312, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 80, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 27, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 3, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 197, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 196, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 13, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 13, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 20, DAG_COMPRESSION_PROCESSED_NODES: 83, DAG_COMPRESSION_RETAINED_NODES: 49, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...