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/nla-digbench/prodbin.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:48:32,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:48:32,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:48:32,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:48:32,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:48:32,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:48:32,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:48:32,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:48:32,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:48:32,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:48:32,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:48:32,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:48:32,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:48:32,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:48:32,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:48:32,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:48:32,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:48:32,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:48:32,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:48:32,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:48:32,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:48:32,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:48:32,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:48:32,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:48:32,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:48:32,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:48:32,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:48:32,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:48:32,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:48:32,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:48:32,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:48:32,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:48:32,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:48:32,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:48:32,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:48:32,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:48:32,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:48:32,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:48:32,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:48:32,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:48:32,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:48:32,942 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 13:48:32,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:48:32,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:48:32,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:48:32,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:48:32,958 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:48:32,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:48:32,958 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:48:32,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:48:32,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:48:32,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:48:32,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:48:32,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:48:32,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:48:32,960 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:48:32,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:48:32,960 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:48:32,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:48:32,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:48:32,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:48:32,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:48:32,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:48:32,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:48:32,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:48:32,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:48:32,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:48:32,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:48:32,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:48:32,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:48:32,963 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 13:48:33,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:48:33,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:48:33,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:48:33,273 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:48:33,274 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:48:33,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/prodbin.c [2019-10-07 13:48:33,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daf996d83/fbe97b5055bc43beac54852329dd5819/FLAG88cb8a06f [2019-10-07 13:48:33,787 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:48:33,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/prodbin.c [2019-10-07 13:48:33,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daf996d83/fbe97b5055bc43beac54852329dd5819/FLAG88cb8a06f [2019-10-07 13:48:34,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daf996d83/fbe97b5055bc43beac54852329dd5819 [2019-10-07 13:48:34,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:48:34,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:48:34,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:48:34,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:48:34,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:48:34,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc525ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34, skipping insertion in model container [2019-10-07 13:48:34,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,218 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:48:34,235 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:48:34,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:48:34,458 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:48:34,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:48:34,497 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:48:34,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34 WrapperNode [2019-10-07 13:48:34,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:48:34,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:48:34,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:48:34,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:48:34,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (1/1) ... [2019-10-07 13:48:34,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:48:34,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:48:34,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:48:34,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:48:34,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (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 13:48:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:48:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:48:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:48:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:48:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:48:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-10-07 13:48:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:48:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:48:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:48:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:48:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:48:34,968 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:48:34,968 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:48:34,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:48:34 BoogieIcfgContainer [2019-10-07 13:48:34,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:48:34,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:48:34,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:48:34,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:48:34,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:48:34" (1/3) ... [2019-10-07 13:48:34,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d27fc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:48:34, skipping insertion in model container [2019-10-07 13:48:34,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:48:34" (2/3) ... [2019-10-07 13:48:34,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d27fc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:48:34, skipping insertion in model container [2019-10-07 13:48:34,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:48:34" (3/3) ... [2019-10-07 13:48:34,999 INFO L109 eAbstractionObserver]: Analyzing ICFG prodbin.c [2019-10-07 13:48:35,011 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:48:35,019 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:48:35,030 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:48:35,054 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:48:35,054 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:48:35,055 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:48:35,055 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:48:35,055 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:48:35,055 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:48:35,055 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:48:35,056 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:48:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-07 13:48:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:48:35,080 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:48:35,080 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:48:35,082 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:48:35,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:48:35,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1598892056, now seen corresponding path program 1 times [2019-10-07 13:48:35,097 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:48:35,097 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:48:35,098 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:48:35,098 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:48:35,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:48:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:48:35,195 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 13:48:35,196 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:48:35,196 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:48:35,197 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 13:48:35,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 13:48:35,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 13:48:35,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 13:48:35,216 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-10-07 13:48:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:48:35,240 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2019-10-07 13:48:35,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 13:48:35,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-07 13:48:35,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:48:35,250 INFO L225 Difference]: With dead ends: 33 [2019-10-07 13:48:35,250 INFO L226 Difference]: Without dead ends: 15 [2019-10-07 13:48:35,253 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 13:48:35,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-07 13:48:35,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-07 13:48:35,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-07 13:48:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-10-07 13:48:35,291 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2019-10-07 13:48:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:48:35,291 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-10-07 13:48:35,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 13:48:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-10-07 13:48:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:48:35,296 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:48:35,296 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:48:35,297 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:48:35,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:48:35,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1561891634, now seen corresponding path program 1 times [2019-10-07 13:48:35,299 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:48:35,299 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:48:35,300 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:48:35,300 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:48:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:48:35,320 ERROR L261 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-07 13:48:35,321 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Benchmark is only available after the trace check is finished. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.getStatistics(TraceCheck.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.getStatistics(InterpolatingTraceCheck.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.aggregateStatistics(IpTcStrategyModuleTraceCheck.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-07 13:48:35,328 INFO L168 Benchmark]: Toolchain (without parser) took 1129.11 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 144.7 MB in the end (delta: -42.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:48:35,330 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:48:35,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.51 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:48:35,335 INFO L168 Benchmark]: Boogie Preprocessor took 120.04 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 179.1 MB in the end (delta: -86.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:48:35,335 INFO L168 Benchmark]: RCFGBuilder took 352.30 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 164.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-10-07 13:48:35,337 INFO L168 Benchmark]: TraceAbstraction took 341.14 ms. Allocated memory is still 200.8 MB. Free memory was 163.8 MB in the beginning and 144.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:48:35,346 INFO L335 ainManager$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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.51 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.04 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 179.1 MB in the end (delta: -86.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 352.30 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 164.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 341.14 ms. Allocated memory is still 200.8 MB. Free memory was 163.8 MB in the beginning and 144.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Benchmark is only available after the trace check is finished. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Benchmark is only available after the trace check is finished.: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.getStatistics(TraceCheck.java:457) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...