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 ExplicitValueDomain --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/loop-acceleration/underapprox_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 08:26:07,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 08:26:07,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 08:26:07,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 08:26:07,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 08:26:07,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 08:26:07,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 08:26:07,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 08:26:07,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 08:26:07,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 08:26:07,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 08:26:07,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 08:26:07,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 08:26:07,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 08:26:07,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 08:26:07,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 08:26:07,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 08:26:07,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 08:26:07,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 08:26:07,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 08:26:07,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 08:26:07,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 08:26:07,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 08:26:07,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 08:26:07,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 08:26:07,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 08:26:07,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 08:26:07,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 08:26:07,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 08:26:07,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 08:26:07,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 08:26:07,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 08:26:07,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 08:26:07,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 08:26:07,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 08:26:07,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 08:26:07,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 08:26:07,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 08:26:07,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 08:26:07,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 08:26:07,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 08:26:07,726 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 08:26:07,749 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 08:26:07,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 08:26:07,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 08:26:07,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 08:26:07,752 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 08:26:07,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 08:26:07,752 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 08:26:07,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 08:26:07,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 08:26:07,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 08:26:07,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 08:26:07,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 08:26:07,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 08:26:07,755 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 08:26:07,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 08:26:07,755 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 08:26:07,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 08:26:07,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 08:26:07,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 08:26:07,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 08:26:07,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 08:26:07,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 08:26:07,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 08:26:07,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 08:26:07,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 08:26:07,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 08:26:07,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 08:26:07,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 08:26:07,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain 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 08:26:07,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 08:26:07,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 08:26:07,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 08:26:07,847 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 08:26:07,848 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 08:26:07,848 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_1-2.c [2019-09-21 08:26:07,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2003805/729836efbe974ca6ba9cc266bf15aec8/FLAGebecc5b30 [2019-09-21 08:26:08,378 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 08:26:08,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_1-2.c [2019-09-21 08:26:08,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2003805/729836efbe974ca6ba9cc266bf15aec8/FLAGebecc5b30 [2019-09-21 08:26:08,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2003805/729836efbe974ca6ba9cc266bf15aec8 [2019-09-21 08:26:08,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 08:26:08,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 08:26:08,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 08:26:08,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 08:26:08,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 08:26:08,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 08:26:08" (1/1) ... [2019-09-21 08:26:08,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648c668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:08, skipping insertion in model container [2019-09-21 08:26:08,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 08:26:08" (1/1) ... [2019-09-21 08:26:08,847 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 08:26:08,864 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 08:26:09,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 08:26:09,070 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 08:26:09,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 08:26:09,095 INFO L192 MainTranslator]: Completed translation [2019-09-21 08:26:09,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09 WrapperNode [2019-09-21 08:26:09,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 08:26:09,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 08:26:09,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 08:26:09,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 08:26:09,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 08:26:09,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 08:26:09,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 08:26:09,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 08:26:09,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:26:09" (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 08:26:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 08:26:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 08:26:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-21 08:26:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 08:26:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 08:26:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-21 08:26:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 08:26:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 08:26:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 08:26:09,440 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 08:26:09,440 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-21 08:26:09,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 08:26:09 BoogieIcfgContainer [2019-09-21 08:26:09,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 08:26:09,442 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 08:26:09,442 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 08:26:09,442 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 08:26:09,443 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 08:26:09" (1/1) ... [2019-09-21 08:26:09,444 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ 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 08:26:09,468 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 08:26:09,468 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 08:26:09,475 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 08:26:09,486 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 08:26:09,488 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 08:26:09,573 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-21 08:26:09,733 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2019-09-21 08:26:09,742 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 08:26:09,743 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 08:26:09,745 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 32#(and (exists ((v_prenex_1 Int) (v_main_~y~0_BEFORE_CALL_1 Int)) (or (and (= |__VERIFIER_assert_#in~cond| (+ (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) (- 4294967296))) (not (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647)) (not (< (mod v_prenex_1 4294967296) 0))) (and (= |__VERIFIER_assert_#in~cond| (+ (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) (- 4294967296))) (= (mod (mod v_prenex_1 4294967296) 3) 0) (not (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647))) (and (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647) (= |__VERIFIER_assert_#in~cond| (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296)) (not (< (mod v_prenex_1 4294967296) 0))) (and (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647) (= |__VERIFIER_assert_#in~cond| (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296)) (= (mod (mod v_prenex_1 4294967296) 3) 0)) (and (< (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 0) (not (= (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 0)) (not (<= (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296) 2147483647)) (= |__VERIFIER_assert_#in~cond| (+ (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296) (- 4294967296)))) (and (= |__VERIFIER_assert_#in~cond| (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296)) (<= (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296) 2147483647) (< (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 0) (not (= (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 0))))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-09-21 08:26:09,764 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 08:26:09,764 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 08:26:09,767 INFO L168 Benchmark]: Toolchain (without parser) took 935.13 ms. Allocated memory was 131.6 MB in the beginning and 196.6 MB in the end (delta: 65.0 MB). Free memory was 87.5 MB in the beginning and 149.2 MB in the end (delta: -61.7 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-09-21 08:26:09,768 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-21 08:26:09,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.07 ms. Allocated memory is still 131.6 MB. Free memory was 87.3 MB in the beginning and 78.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-21 08:26:09,770 INFO L168 Benchmark]: Boogie Preprocessor took 113.73 ms. Allocated memory was 131.6 MB in the beginning and 196.6 MB in the end (delta: 65.0 MB). Free memory was 78.1 MB in the beginning and 173.0 MB in the end (delta: -94.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-21 08:26:09,771 INFO L168 Benchmark]: RCFGBuilder took 231.25 ms. Allocated memory is still 196.6 MB. Free memory was 173.0 MB in the beginning and 161.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-09-21 08:26:09,772 INFO L168 Benchmark]: Sifa took 322.41 ms. Allocated memory is still 196.6 MB. Free memory was 161.0 MB in the beginning and 149.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-09-21 08:26:09,776 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 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.07 ms. Allocated memory is still 131.6 MB. Free memory was 87.3 MB in the beginning and 78.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.73 ms. Allocated memory was 131.6 MB in the beginning and 196.6 MB in the end (delta: 65.0 MB). Free memory was 78.1 MB in the beginning and 173.0 MB in the end (delta: -94.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 231.25 ms. Allocated memory is still 196.6 MB. Free memory was 173.0 MB in the beginning and 161.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * Sifa took 322.41 ms. Allocated memory is still 196.6 MB. Free memory was 161.0 MB in the beginning and 149.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 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]: 278, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 13, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME[ms]: 19, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 40, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 13, TOOLS_QUANTIFIERELIM_TIME[ms]: 47, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 31, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 16, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME[ms]: 80, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 38, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 21, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME[ms]: 0, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 113, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 113, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 45, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 45, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 19, DAG_COMPRESSION_PROCESSED_NODES: 44, DAG_COMPRESSION_RETAINED_NODES: 28 - UnprovableResult [Line: 5]: 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 32#(and (exists ((v_prenex_1 Int) (v_main_~y~0_BEFORE_CALL_1 Int)) (or (and (= |__VERIFIER_assert_#in~cond| (+ (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) (- 4294967296))) (not (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647)) (not (< (mod v_prenex_1 4294967296) 0))) (and (= |__VERIFIER_assert_#in~cond| (+ (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) (- 4294967296))) (= (mod (mod v_prenex_1 4294967296) 3) 0) (not (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647))) (and (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647) (= |__VERIFIER_assert_#in~cond| (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296)) (not (< (mod v_prenex_1 4294967296) 0))) (and (<= (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296) 2147483647) (= |__VERIFIER_assert_#in~cond| (mod (mod (mod v_prenex_1 4294967296) 3) 4294967296)) (= (mod (mod v_prenex_1 4294967296) 3) 0)) (and (< (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 0) (not (= (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 0)) (not (<= (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296) 2147483647)) (= |__VERIFIER_assert_#in~cond| (+ (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296) (- 4294967296)))) (and (= |__VERIFIER_assert_#in~cond| (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296)) (<= (mod (+ (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 4294967293) 4294967296) 2147483647) (< (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 0) (not (= (mod (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 3) 0))))) (= 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...