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-invariants/mod4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 20:44:11,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 20:44:11,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 20:44:11,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 20:44:11,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 20:44:11,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 20:44:11,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 20:44:11,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 20:44:11,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 20:44:11,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 20:44:11,706 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 20:44:11,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 20:44:11,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 20:44:11,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 20:44:11,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 20:44:11,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 20:44:11,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 20:44:11,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 20:44:11,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 20:44:11,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 20:44:11,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 20:44:11,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 20:44:11,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 20:44:11,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 20:44:11,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 20:44:11,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 20:44:11,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 20:44:11,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 20:44:11,731 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 [2019-08-14 20:44:11,751 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 20:44:11,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 20:44:11,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 20:44:11,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 20:44:11,755 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 20:44:11,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 20:44:11,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 20:44:11,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 20:44:11,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 20:44:11,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 20:44:11,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 20:44:11,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 20:44:11,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 20:44:11,757 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 20:44:11,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 20:44:11,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 20:44:11,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 20:44:11,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 20:44:11,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 20:44:11,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 20:44:11,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 20:44:11,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 20:44:11,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 20:44:11,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 20:44:11,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 20:44:11,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 20:44:11,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 20:44:11,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 20:44:11,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 20:44:11,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 20:44:11,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 20:44:11,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 20:44:11,812 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 20:44:11,813 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 20:44:11,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/mod4.c [2019-08-14 20:44:11,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f020140d/00bf7c94a0de46da988af8d8cbd96f73/FLAG024ee7488 [2019-08-14 20:44:12,299 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 20:44:12,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/mod4.c [2019-08-14 20:44:12,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f020140d/00bf7c94a0de46da988af8d8cbd96f73/FLAG024ee7488 [2019-08-14 20:44:12,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f020140d/00bf7c94a0de46da988af8d8cbd96f73 [2019-08-14 20:44:12,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 20:44:12,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 20:44:12,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 20:44:12,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 20:44:12,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 20:44:12,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:44:12" (1/1) ... [2019-08-14 20:44:12,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec2ec19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:12, skipping insertion in model container [2019-08-14 20:44:12,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:44:12" (1/1) ... [2019-08-14 20:44:12,760 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 20:44:12,780 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 20:44:13,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:44:13,045 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 20:44:13,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:44:13,086 INFO L192 MainTranslator]: Completed translation [2019-08-14 20:44:13,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13 WrapperNode [2019-08-14 20:44:13,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 20:44:13,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 20:44:13,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 20:44:13,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 20:44:13,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 20:44:13,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 20:44:13,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 20:44:13,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 20:44:13,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:44:13" (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 [2019-08-14 20:44:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 20:44:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 20:44:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-14 20:44:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 20:44:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 20:44:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 20:44:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-14 20:44:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 20:44:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 20:44:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 20:44:13,444 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 20:44:13,444 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-14 20:44:13,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:44:13 BoogieIcfgContainer [2019-08-14 20:44:13,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 20:44:13,446 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 20:44:13,446 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 20:44:13,447 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 20:44:13,448 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:44:13" (1/1) ... [2019-08-14 20:44:13,602 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 20:44:13,605 INFO L168 Benchmark]: Toolchain (without parser) took 863.02 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 86.9 MB in the beginning and 158.9 MB in the end (delta: -71.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 20:44:13,606 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-14 20:44:13,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.52 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-14 20:44:13,608 INFO L168 Benchmark]: Boogie Preprocessor took 140.43 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 77.7 MB in the beginning and 177.2 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-08-14 20:44:13,609 INFO L168 Benchmark]: RCFGBuilder took 217.51 ms. Allocated memory is still 198.7 MB. Free memory was 176.6 MB in the beginning and 166.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-14 20:44:13,610 INFO L168 Benchmark]: Symbolic Interpretation took 155.71 ms. Allocated memory is still 198.7 MB. Free memory was 166.1 MB in the beginning and 158.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2019-08-14 20:44:13,614 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: Over-approximation of reachable states at this location is 42#(and (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 1)) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 345.52 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.43 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 77.7 MB in the beginning and 177.2 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 217.51 ms. Allocated memory is still 198.7 MB. Free memory was 176.6 MB in the beginning and 166.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 155.71 ms. Allocated memory is still 198.7 MB. Free memory was 166.1 MB in the beginning and 158.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...