java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/nla-digbench/ps2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:48:01,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:48:01,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:48:01,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:48:01,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:48:01,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:48:01,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:48:01,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:48:01,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:48:01,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:48:01,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:48:01,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:48:01,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:48:01,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:48:01,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:48:01,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:48:01,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:48:01,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:48:01,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:48:01,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:48:01,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:48:01,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:48:01,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:48:01,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:48:01,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:48:01,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:48:01,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:48:01,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:48:01,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:48:01,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:48:01,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:48:01,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:48:01,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:48:01,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:48:01,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:48:01,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:48:01,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:48:01,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:48:01,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:48:01,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:48:01,107 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:48:01,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:48:01,108 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:48:01,108 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:48:01,109 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:48:01,109 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:48:01,109 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:48:01,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:48:01,110 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:48:01,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:48:01,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:48:01,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:48:01,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:48:01,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:48:01,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:48:01,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:48:01,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:48:01,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:48:01,112 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:48:01,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:48:01,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:48:01,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:48:01,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:48:01,113 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:48:01,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:48:01,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:48:01,113 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:48:01,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:48:01,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:48:01,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:48:01,161 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:48:01,162 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:48:01,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-20 13:48:01,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937b5c692/d317822dd2d644a6ad19e405b8ef1724/FLAG6a7bd43fa [2019-09-20 13:48:01,627 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:48:01,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-20 13:48:01,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937b5c692/d317822dd2d644a6ad19e405b8ef1724/FLAG6a7bd43fa [2019-09-20 13:48:01,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937b5c692/d317822dd2d644a6ad19e405b8ef1724 [2019-09-20 13:48:01,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:48:01,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:48:01,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:01,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:48:01,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:48:01,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:01" (1/1) ... [2019-09-20 13:48:01,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79682f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:01, skipping insertion in model container [2019-09-20 13:48:01,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:01" (1/1) ... [2019-09-20 13:48:01,989 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:48:02,004 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:48:02,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:02,169 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:48:02,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:02,203 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:48:02,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02 WrapperNode [2019-09-20 13:48:02,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:02,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:48:02,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:48:02,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:48:02,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:48:02,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:48:02,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:48:02,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:48:02,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (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 [2019-09-20 13:48:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:48:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:48:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:48:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:48:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:48:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:48:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:48:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:48:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:48:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:48:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:48:02,565 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:48:02,566 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:48:02,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:02 BoogieIcfgContainer [2019-09-20 13:48:02,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:48:02,568 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:48:02,568 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:48:02,568 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:48:02,569 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,599 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:48:02,713 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:48:02,732 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 13 root evaluator evaluations with a maximum evaluation depth of 9. Performed 13 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 6 variables. [2019-09-20 13:48:02,732 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:48:02,736 INFO L168 Benchmark]: Toolchain (without parser) took 765.56 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 86.4 MB in the beginning and 159.3 MB in the end (delta: -72.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:48:02,737 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:48:02,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.98 ms. Allocated memory is still 133.7 MB. Free memory was 86.2 MB in the beginning and 76.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:02,740 INFO L168 Benchmark]: Boogie Preprocessor took 132.73 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 76.8 MB in the beginning and 179.3 MB in the end (delta: -102.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:02,741 INFO L168 Benchmark]: RCFGBuilder took 229.34 ms. Allocated memory is still 201.3 MB. Free memory was 178.8 MB in the beginning and 167.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:02,742 INFO L168 Benchmark]: Abstract Interpretation took 164.83 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 159.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:02,749 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 133.7 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 234.98 ms. Allocated memory is still 133.7 MB. Free memory was 86.2 MB in the beginning and 76.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.73 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 76.8 MB in the beginning and 179.3 MB in the end (delta: -102.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 229.34 ms. Allocated memory is still 201.3 MB. Free memory was 178.8 MB in the beginning and 167.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 164.83 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 159.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L13] int k, y, x, c; [L14] k = __VERIFIER_nondet_int() [L16] y = 0 [L17] x = 0 [L18] c = 0 [L20] COND TRUE 1 [L21] CALL __VERIFIER_assert((y * y) - 2 * x + y == 0) [L5] COND TRUE !(cond) [L7] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...