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 -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:46:14,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:46:14,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:46:14,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:46:14,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:46:14,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:46:14,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:46:14,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:46:14,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:46:14,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:46:14,819 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:46:14,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:46:14,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:46:14,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:46:14,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:46:14,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:46:14,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:46:14,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:46:14,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:46:14,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:46:14,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:46:14,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:46:14,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:46:14,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:46:14,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:46:14,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 11:46:14,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 11:46:14,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 11:46:14,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 11:46:14,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 11:46:14,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 11:46:14,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 11:46:14,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 11:46:14,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:46:14,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:46:14,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:46:14,848 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 [2019-08-08 11:46:14,862 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:46:14,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:46:14,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:46:14,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:46:14,864 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:46:14,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:46:14,865 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:46:14,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:46:14,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:46:14,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:46:14,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:46:14,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:46:14,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:46:14,866 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:46:14,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:46:14,866 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:46:14,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:46:14,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:46:14,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:46:14,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:46:14,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:46:14,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:46:14,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:46:14,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:46:14,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:46:14,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:46:14,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:46:14,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:46:14,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:46:14,899 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:46:14,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:46:14,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:46:14,916 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:46:14,917 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:46:14,917 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_1-1.c [2019-08-08 11:46:14,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4337f25fd/aa8e32ce5fc443148f74d1613892d821/FLAG1e6bcfdd0 [2019-08-08 11:46:15,401 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:46:15,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_1-1.c [2019-08-08 11:46:15,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4337f25fd/aa8e32ce5fc443148f74d1613892d821/FLAG1e6bcfdd0 [2019-08-08 11:46:15,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4337f25fd/aa8e32ce5fc443148f74d1613892d821 [2019-08-08 11:46:15,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:46:15,440 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:46:15,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:46:15,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:46:15,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:46:15,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca1931a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15, skipping insertion in model container [2019-08-08 11:46:15,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,457 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:46:15,473 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:46:15,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:46:15,637 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:46:15,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:46:15,676 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:46:15,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15 WrapperNode [2019-08-08 11:46:15,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:46:15,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:46:15,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:46:15,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:46:15,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:46:15,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:46:15,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:46:15,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:46:15,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:15" (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 [2019-08-08 11:46:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:46:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:46:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-08 11:46:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:46:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:46:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-08 11:46:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:46:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:46:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:46:16,053 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:46:16,053 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 11:46:16,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:46:16 BoogieIcfgContainer [2019-08-08 11:46:16,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:46:16,055 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:46:16,056 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:46:16,056 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:46:16,057 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:46:16" (1/1) ... [2019-08-08 11:46:16,068 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:46:16,070 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:46:16,076 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:46:16,084 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:46:16,086 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:46:16,120 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-08 11:46:16,172 INFO L185 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 [2019-08-08 11:46:16,179 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:46:16,179 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:46:16,182 INFO L179 IcfgInterpreter]: Location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 34#(and (exists ((v_main_~x~0_BEFORE_CALL_1 Int)) (and (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 6)) (< (mod (+ v_main_~x~0_BEFORE_CALL_1 4294967295) 4294967296) 6))) (exists ((v_main_~y~0_BEFORE_CALL_1 Int)) (and (= (ite (not (= (mod v_main_~y~0_BEFORE_CALL_1 4294967296) 64)) 1 0) |__VERIFIER_assert_#in~cond|) (exists ((v_main_~y~0_8 Int)) (= v_main_~y~0_BEFORE_CALL_1 (* 2 v_main_~y~0_8))))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-08 11:46:16,183 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:46:16,191 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:46:16,194 INFO L168 Benchmark]: Toolchain (without parser) took 752.12 ms. Allocated memory was 136.3 MB in the beginning and 203.9 MB in the end (delta: 67.6 MB). Free memory was 90.0 MB in the beginning and 165.0 MB in the end (delta: -75.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:46:16,195 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory is still 107.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:46:16,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.63 ms. Allocated memory is still 136.3 MB. Free memory was 89.6 MB in the beginning and 80.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:16,197 INFO L168 Benchmark]: Boogie Preprocessor took 127.29 ms. Allocated memory was 136.3 MB in the beginning and 203.9 MB in the end (delta: 67.6 MB). Free memory was 80.5 MB in the beginning and 183.1 MB in the end (delta: -102.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:16,198 INFO L168 Benchmark]: RCFGBuilder took 250.14 ms. Allocated memory is still 203.9 MB. Free memory was 183.1 MB in the beginning and 172.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:16,200 INFO L168 Benchmark]: Symbolic Interpretation took 135.58 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 165.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:16,211 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory is still 107.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.63 ms. Allocated memory is still 136.3 MB. Free memory was 89.6 MB in the beginning and 80.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.29 ms. Allocated memory was 136.3 MB in the beginning and 203.9 MB in the end (delta: 67.6 MB). Free memory was 80.5 MB in the beginning and 183.1 MB in the end (delta: -102.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 250.14 ms. Allocated memory is still 203.9 MB. Free memory was 183.1 MB in the beginning and 172.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 135.58 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 165.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...