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/loop-acceleration/functions_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 13:34:46,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 13:34:46,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 13:34:46,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-05 13:34:46,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 13:34:46,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 13:34:46,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 13:34:46,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 13:34:46,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 13:34:46,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 13:34:46,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 13:34:46,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 13:34:46,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 13:34:46,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 13:34:46,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 13:34:46,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 13:34:46,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-05 13:34:46,700 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 [2019-09-05 13:34:46,724 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 13:34:46,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 13:34:46,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-05 13:34:46,729 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-05 13:34:46,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-05 13:34:46,733 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-05 13:34:46,733 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-05 13:34:46,733 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-05 13:34:46,734 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-05 13:34:46,734 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-05 13:34:46,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 13:34:46,735 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 13:34:46,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 13:34:46,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 13:34:46,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 13:34:46,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 13:34:46,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 13:34:46,738 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 13:34:46,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 13:34:46,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 13:34:46,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 13:34:46,739 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-05 13:34:46,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 13:34:46,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 13:34:46,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 13:34:46,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 13:34:46,740 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-05 13:34:46,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 13:34:46,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 13:34:46,741 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-05 13:34:46,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 13:34:46,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 13:34:46,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 13:34:46,824 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 13:34:46,825 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 13:34:46,826 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2019-09-05 13:34:46,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1284fc04/db435867b4414496bb10a47a5f7194d2/FLAG06b5a5f64 [2019-09-05 13:34:47,375 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 13:34:47,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2019-09-05 13:34:47,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1284fc04/db435867b4414496bb10a47a5f7194d2/FLAG06b5a5f64 [2019-09-05 13:34:47,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1284fc04/db435867b4414496bb10a47a5f7194d2 [2019-09-05 13:34:47,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 13:34:47,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 13:34:47,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 13:34:47,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 13:34:47,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 13:34:47,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390dd54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47, skipping insertion in model container [2019-09-05 13:34:47,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 13:34:47,799 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 13:34:47,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:34:47,982 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 13:34:47,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:34:48,010 INFO L192 MainTranslator]: Completed translation [2019-09-05 13:34:48,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48 WrapperNode [2019-09-05 13:34:48,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 13:34:48,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 13:34:48,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 13:34:48,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 13:34:48,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 13:34:48,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 13:34:48,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 13:34:48,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 13:34:48,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:48" (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 [2019-09-05 13:34:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 13:34:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 13:34:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-05 13:34:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-05 13:34:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 13:34:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 13:34:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 13:34:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-05 13:34:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 13:34:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 13:34:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 13:34:48,379 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 13:34:48,379 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-05 13:34:48,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:34:48 BoogieIcfgContainer [2019-09-05 13:34:48,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 13:34:48,385 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-05 13:34:48,385 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-05 13:34:48,389 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-05 13:34:48,391 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,441 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-05 13:34:48,543 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-05 13:34:49,747 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-05 13:34:49,771 INFO L272 AbstractInterpreter]: Visited 24 different actions 132 times. Merged at 6 different actions 36 times. Widened at 1 different actions 4 times. Performed 134 root evaluator evaluations with a maximum evaluation depth of 12. Performed 134 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 7 fixpoints after 2 different actions. Largest state had 3 variables. [2019-09-05 13:34:49,771 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-05 13:34:49,777 INFO L168 Benchmark]: Toolchain (without parser) took 2009.77 ms. Allocated memory was 137.4 MB in the beginning and 271.6 MB in the end (delta: 134.2 MB). Free memory was 83.6 MB in the beginning and 152.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:49,779 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 102.1 MB in the beginning and 101.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 13:34:49,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.58 ms. Allocated memory is still 137.4 MB. Free memory was 83.4 MB in the beginning and 74.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:49,783 INFO L168 Benchmark]: Boogie Preprocessor took 124.43 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 74.3 MB in the beginning and 175.1 MB in the end (delta: -100.8 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:49,785 INFO L168 Benchmark]: RCFGBuilder took 247.54 ms. Allocated memory is still 198.2 MB. Free memory was 175.1 MB in the beginning and 164.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:49,787 INFO L168 Benchmark]: Abstract Interpretation took 1386.68 ms. Allocated memory was 198.2 MB in the beginning and 271.6 MB in the end (delta: 73.4 MB). Free memory was 164.7 MB in the beginning and 152.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:49,799 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 137.4 MB. Free memory was 102.1 MB in the beginning and 101.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.58 ms. Allocated memory is still 137.4 MB. Free memory was 83.4 MB in the beginning and 74.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.43 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 74.3 MB in the beginning and 175.1 MB in the end (delta: -100.8 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.54 ms. Allocated memory is still 198.2 MB. Free memory was 175.1 MB in the beginning and 164.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1386.68 ms. Allocated memory was 198.2 MB in the beginning and 271.6 MB in the end (delta: 73.4 MB). Free memory was 164.7 MB in the beginning and 152.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: 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: [L15] unsigned int x = 0; [L17] COND FALSE !(x < 0x0fffffff) [L21] CALL __VERIFIER_assert(x % 2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...