java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/nla-digbench/fermat1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:50:55,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:50:55,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:50:55,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:50:55,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:50:55,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:50:55,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:50:55,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:50:55,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:50:55,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:50:55,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:50:55,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:50:55,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:50:55,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:50:55,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:50:55,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:50:55,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:50:55,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:50:55,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:50:55,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:50:55,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:50:55,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:50:55,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:50:55,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:50:55,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:50:55,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:50:55,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:50:55,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:50:55,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:50:55,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:50:55,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:50:55,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:50:55,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:50:55,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:50:55,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:50:55,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:50:55,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:50:55,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:50:55,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:50:55,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:50:55,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:50:55,876 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 [2019-09-21 09:50:55,891 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:50:55,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:50:55,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:50:55,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:50:55,893 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:50:55,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:50:55,893 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:50:55,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:50:55,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:50:55,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:50:55,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:50:55,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:50:55,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:50:55,895 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:50:55,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:50:55,895 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:50:55,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:50:55,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:50:55,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:50:55,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:50:55,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:50:55,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:50:55,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:50:55,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:50:55,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:50:55,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:50:55,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:50:55,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:50:55,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-09-21 09:50:55,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:50:55,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:50:55,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:50:55,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:50:55,947 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:50:55,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-21 09:50:56,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e315ef5dc/44ea26d02135404281d771dd11b5a844/FLAGcd84601ce [2019-09-21 09:50:56,484 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:50:56,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-21 09:50:56,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e315ef5dc/44ea26d02135404281d771dd11b5a844/FLAGcd84601ce [2019-09-21 09:50:56,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e315ef5dc/44ea26d02135404281d771dd11b5a844 [2019-09-21 09:50:56,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:50:56,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:50:56,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:50:56,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:50:56,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:50:56,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:50:56" (1/1) ... [2019-09-21 09:50:56,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c335e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:56, skipping insertion in model container [2019-09-21 09:50:56,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:50:56" (1/1) ... [2019-09-21 09:50:56,864 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:50:56,882 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:50:57,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:50:57,087 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:50:57,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:50:57,125 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:50:57,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57 WrapperNode [2019-09-21 09:50:57,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:50:57,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:50:57,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:50:57,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:50:57,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:50:57,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:50:57,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:50:57,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:50:57,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:50:57" (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 [2019-09-21 09:50:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:50:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:50:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-21 09:50:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:50:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:50:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-21 09:50:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-21 09:50:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-21 09:50:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:50:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:50:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:50:57,566 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:50:57,566 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-21 09:50:57,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:50:57 BoogieIcfgContainer [2019-09-21 09:50:57,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:50:57,569 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:50:57,569 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:50:57,570 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:50:57,580 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:50:57" (1/1) ... [2019-09-21 09:50:57,583 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:50:57,638 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 09:50:57,638 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:50:57,655 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:50:57,673 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:50:57,675 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:50:57,756 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-21 09:51:02,946 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 327 [2019-09-21 09:51:03,603 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 415 [2019-09-21 09:51:03,750 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 415 [2019-09-21 09:51:04,046 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 415 [2019-09-21 09:51:04,228 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 368 [2019-09-21 09:51:04,356 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 368 [2019-09-21 09:51:04,704 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 370 [2019-09-21 09:51:04,874 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 411 [2019-09-21 09:51:04,986 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 411 [2019-09-21 09:51:05,286 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 412 [2019-09-21 09:51:06,081 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 506 [2019-09-21 09:51:06,242 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 506 [2019-09-21 09:51:06,709 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 507 DAG size of output: 506 [2019-09-21 09:51:08,281 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 523 DAG size of output: 504 [2019-09-21 09:51:09,008 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,009 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,010 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,031 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,032 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,032 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,411 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,431 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,757 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:09,771 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:10,245 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:10,246 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:10,247 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:10,265 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:10,265 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:10,266 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 4 iterations. Over-approximation may be very coarse. [2019-09-21 09:51:10,449 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2019-09-21 09:51:10,452 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 09:51:10,452 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 09:51:10,454 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 2910#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-09-21 09:51:10,469 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 09:51:10,469 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 09:51:10,473 INFO L168 Benchmark]: Toolchain (without parser) took 13621.89 ms. Allocated memory was 129.0 MB in the beginning and 611.8 MB in the end (delta: 482.9 MB). Free memory was 84.8 MB in the beginning and 224.4 MB in the end (delta: -139.7 MB). Peak memory consumption was 343.2 MB. Max. memory is 7.1 GB. [2019-09-21 09:51:10,477 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 129.0 MB. Free memory was 103.0 MB in the beginning and 102.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-21 09:51:10,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.08 ms. Allocated memory is still 129.0 MB. Free memory was 84.5 MB in the beginning and 74.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-09-21 09:51:10,479 INFO L168 Benchmark]: Boogie Preprocessor took 142.34 ms. Allocated memory was 129.0 MB in the beginning and 198.2 MB in the end (delta: 69.2 MB). Free memory was 74.7 MB in the beginning and 173.8 MB in the end (delta: -99.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-21 09:51:10,480 INFO L168 Benchmark]: RCFGBuilder took 299.56 ms. Allocated memory is still 198.2 MB. Free memory was 173.8 MB in the beginning and 159.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-09-21 09:51:10,481 INFO L168 Benchmark]: Sifa took 12900.45 ms. Allocated memory was 198.2 MB in the beginning and 611.8 MB in the end (delta: 413.7 MB). Free memory was 159.5 MB in the beginning and 224.4 MB in the end (delta: -64.9 MB). Peak memory consumption was 348.7 MB. Max. memory is 7.1 GB. [2019-09-21 09:51:10,485 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 129.0 MB. Free memory was 103.0 MB in the beginning and 102.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.08 ms. Allocated memory is still 129.0 MB. Free memory was 84.5 MB in the beginning and 74.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.34 ms. Allocated memory was 129.0 MB in the beginning and 198.2 MB in the end (delta: 69.2 MB). Free memory was 74.7 MB in the beginning and 173.8 MB in the end (delta: -99.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 299.56 ms. Allocated memory is still 198.2 MB. Free memory was 173.8 MB in the beginning and 159.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * Sifa took 12900.45 ms. Allocated memory was 198.2 MB in the beginning and 611.8 MB in the end (delta: 413.7 MB). Free memory was 159.5 MB in the beginning and 224.4 MB in the end (delta: -64.9 MB). Peak memory consumption was 348.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 12817, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 320, DAG_INTERPRETER_EARLY_EXITS: 9, TOOLS_POST_APPLICATIONS: 205, TOOLS_POST_TIME[ms]: 124, TOOLS_POST_CALL_APPLICATIONS: 64, TOOLS_POST_CALL_TIME[ms]: 1746, TOOLS_POST_RETURN_APPLICATIONS: 59, TOOLS_POST_RETURN_TIME[ms]: 97, TOOLS_QUANTIFIERELIM_APPLICATIONS: 288, TOOLS_QUANTIFIERELIM_TIME[ms]: 1859, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 459, FLUID_QUERY_TIME[ms]: 16, FLUID_QUERIES: 347, FLUID_YES_ANSWERS: 5, DOMAIN_JOIN_APPLICATIONS: 104, DOMAIN_JOIN_TIME[ms]: 5672, DOMAIN_ALPHA_APPLICATIONS: 5, DOMAIN_ALPHA_TIME[ms]: 1111, DOMAIN_WIDEN_APPLICATIONS: 16, DOMAIN_WIDEN_TIME[ms]: 3017, DOMAIN_ISSUBSETEQ_APPLICATIONS: 27, DOMAIN_ISSUBSETEQ_TIME[ms]: 261, DOMAIN_ISBOTTOM_APPLICATIONS: 72, DOMAIN_ISBOTTOM_TIME[ms]: 630, LOOP_SUMMARIZER_APPLICATIONS: 11, LOOP_SUMMARIZER_CACHE_MISSES: 11, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 12433, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 12433, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 27, CALL_SUMMARIZER_APPLICATIONS: 59, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 72, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 71, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 41, DAG_COMPRESSION_PROCESSED_NODES: 333, DAG_COMPRESSION_RETAINED_NODES: 143 - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 2910#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...