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/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 19:40:04,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 19:40:04,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 19:40:04,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 19:40:04,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 19:40:04,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 19:40:04,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 19:40:04,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 19:40:04,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 19:40:04,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 19:40:04,956 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 19:40:04,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 19:40:04,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 19:40:04,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 19:40:04,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 19:40:04,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 19:40:04,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 19:40:04,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 19:40:04,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 19:40:04,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 19:40:04,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 19:40:04,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 19:40:04,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 19:40:04,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 19:40:04,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 19:40:04,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 19:40:04,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 19:40:04,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 19:40:04,984 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 19:40:04,998 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 19:40:04,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 19:40:05,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 19:40:05,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 19:40:05,000 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 19:40:05,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 19:40:05,001 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 19:40:05,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 19:40:05,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 19:40:05,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 19:40:05,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 19:40:05,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 19:40:05,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 19:40:05,002 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 19:40:05,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 19:40:05,003 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 19:40:05,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 19:40:05,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 19:40:05,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 19:40:05,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 19:40:05,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 19:40:05,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 19:40:05,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 19:40:05,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 19:40:05,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 19:40:05,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 19:40:05,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 19:40:05,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 19:40:05,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 19:40:05,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 19:40:05,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 19:40:05,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 19:40:05,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 19:40:05,052 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 19:40:05,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2019-08-14 19:40:05,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b1a3d33/99fc2c1602f94b51904ccfd6254424df/FLAG494e5fc54 [2019-08-14 19:40:05,572 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 19:40:05,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2019-08-14 19:40:05,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b1a3d33/99fc2c1602f94b51904ccfd6254424df/FLAG494e5fc54 [2019-08-14 19:40:05,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b1a3d33/99fc2c1602f94b51904ccfd6254424df [2019-08-14 19:40:05,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 19:40:05,990 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 19:40:05,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 19:40:05,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 19:40:05,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 19:40:05,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 07:40:05" (1/1) ... [2019-08-14 19:40:06,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139ed062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06, skipping insertion in model container [2019-08-14 19:40:06,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 07:40:05" (1/1) ... [2019-08-14 19:40:06,011 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 19:40:06,029 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 19:40:06,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 19:40:06,206 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 19:40:06,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 19:40:06,233 INFO L192 MainTranslator]: Completed translation [2019-08-14 19:40:06,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06 WrapperNode [2019-08-14 19:40:06,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 19:40:06,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 19:40:06,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 19:40:06,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 19:40:06,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 19:40:06,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 19:40:06,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 19:40:06,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 19:40:06,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:40:06" (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 19:40:06,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 19:40:06,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 19:40:06,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 19:40:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 19:40:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-14 19:40:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 19:40:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 19:40:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 19:40:06,555 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 19:40:06,555 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-14 19:40:06,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 07:40:06 BoogieIcfgContainer [2019-08-14 19:40:06,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 19:40:06,558 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 19:40:06,558 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 19:40:06,559 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 19:40:06,560 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 07:40:06" (1/1) ... [2019-08-14 19:40:06,664 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 19:40:06,667 INFO L168 Benchmark]: Toolchain (without parser) took 675.77 ms. Allocated memory was 132.6 MB in the beginning and 200.8 MB in the end (delta: 68.2 MB). Free memory was 86.5 MB in the beginning and 162.0 MB in the end (delta: -75.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 19:40:06,668 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-14 19:40:06,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.78 ms. Allocated memory is still 132.6 MB. Free memory was 86.3 MB in the beginning and 77.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-14 19:40:06,670 INFO L168 Benchmark]: Boogie Preprocessor took 128.38 ms. Allocated memory was 132.6 MB in the beginning and 200.8 MB in the end (delta: 68.2 MB). Free memory was 77.0 MB in the beginning and 177.7 MB in the end (delta: -100.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-08-14 19:40:06,671 INFO L168 Benchmark]: RCFGBuilder took 195.17 ms. Allocated memory is still 200.8 MB. Free memory was 177.7 MB in the beginning and 166.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-08-14 19:40:06,672 INFO L168 Benchmark]: Symbolic Interpretation took 105.75 ms. Allocated memory is still 200.8 MB. Free memory was 166.9 MB in the beginning and 162.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-14 19:40:06,677 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 25]: 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 22#(and (= main_~__VERIFIER_assert__cond~0 0) (or (and (= 1.0 main_~main__x~0) (= ~__return_main~0 0)) (= ~__return_main~0 0)) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (or (= main_~__tmp_1~0 1) (= main_~__tmp_1~0 0))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.78 ms. Allocated memory is still 132.6 MB. Free memory was 86.3 MB in the beginning and 77.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.38 ms. Allocated memory was 132.6 MB in the beginning and 200.8 MB in the end (delta: 68.2 MB). Free memory was 77.0 MB in the beginning and 177.7 MB in the end (delta: -100.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 195.17 ms. Allocated memory is still 200.8 MB. Free memory was 177.7 MB in the beginning and 166.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 105.75 ms. Allocated memory is still 200.8 MB. Free memory was 166.9 MB in the beginning and 162.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...