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/ldv-regression/test22-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 20:14:47,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 20:14:47,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 20:14:47,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 20:14:47,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 20:14:47,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 20:14:47,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 20:14:47,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 20:14:47,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 20:14:47,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 20:14:47,738 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 20:14:47,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 20:14:47,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 20:14:47,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 20:14:47,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 20:14:47,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 20:14:47,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 20:14:47,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 20:14:47,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 20:14:47,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 20:14:47,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 20:14:47,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 20:14:47,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 20:14:47,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 20:14:47,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 20:14:47,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 20:14:47,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 20:14:47,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 20:14:47,763 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 20:14:47,777 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 20:14:47,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 20:14:47,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 20:14:47,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 20:14:47,779 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 20:14:47,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 20:14:47,780 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 20:14:47,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 20:14:47,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 20:14:47,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 20:14:47,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 20:14:47,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 20:14:47,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 20:14:47,781 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 20:14:47,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 20:14:47,781 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 20:14:47,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 20:14:47,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 20:14:47,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 20:14:47,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 20:14:47,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 20:14:47,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 20:14:47,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 20:14:47,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 20:14:47,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 20:14:47,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 20:14:47,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 20:14:47,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 20:14:47,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 20:14:47,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 20:14:47,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 20:14:47,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 20:14:47,829 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 20:14:47,830 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 20:14:47,830 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test22-2.c [2019-08-14 20:14:47,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763c37761/45e2a119c1ea43088b1ec12d38221578/FLAGf2e93749d [2019-08-14 20:14:48,317 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 20:14:48,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test22-2.c [2019-08-14 20:14:48,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763c37761/45e2a119c1ea43088b1ec12d38221578/FLAGf2e93749d [2019-08-14 20:14:48,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763c37761/45e2a119c1ea43088b1ec12d38221578 [2019-08-14 20:14:48,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 20:14:48,736 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 20:14:48,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 20:14:48,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 20:14:48,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 20:14:48,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:14:48" (1/1) ... [2019-08-14 20:14:48,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ff7d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:48, skipping insertion in model container [2019-08-14 20:14:48,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:14:48" (1/1) ... [2019-08-14 20:14:48,753 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 20:14:48,772 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 20:14:48,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:14:49,003 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 20:14:49,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:14:49,060 INFO L192 MainTranslator]: Completed translation [2019-08-14 20:14:49,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49 WrapperNode [2019-08-14 20:14:49,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 20:14:49,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 20:14:49,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 20:14:49,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 20:14:49,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 20:14:49,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 20:14:49,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 20:14:49,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 20:14:49,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:49" (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 20:14:49,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 20:14:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 20:14:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-08-14 20:14:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-08-14 20:14:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-08-14 20:14:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 20:14:49,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 20:14:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 20:14:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-14 20:14:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-14 20:14:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-14 20:14:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-08-14 20:14:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-14 20:14:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-14 20:14:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 20:14:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 20:14:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-14 20:14:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-08-14 20:14:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 20:14:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-14 20:14:49,527 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 20:14:49,527 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-14 20:14:49,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:14:49 BoogieIcfgContainer [2019-08-14 20:14:49,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 20:14:49,538 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 20:14:49,538 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 20:14:49,538 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 20:14:49,543 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:14:49" (1/1) ... [2019-08-14 20:14:49,993 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-08-14 20:14:50,259 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-08-14 20:14:50,404 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-08-14 20:14:50,514 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 20:14:50,517 INFO L168 Benchmark]: Toolchain (without parser) took 1780.14 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 89.5 MB in the beginning and 84.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:50,518 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-14 20:14:50,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.41 ms. Allocated memory is still 142.1 MB. Free memory was 89.1 MB in the beginning and 78.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:50,520 INFO L168 Benchmark]: Boogie Preprocessor took 142.80 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 78.9 MB in the beginning and 177.6 MB in the end (delta: -98.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:50,521 INFO L168 Benchmark]: RCFGBuilder took 331.97 ms. Allocated memory is still 200.8 MB. Free memory was 177.6 MB in the beginning and 160.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:50,522 INFO L168 Benchmark]: Symbolic Interpretation took 976.98 ms. Allocated memory is still 200.8 MB. Free memory was 160.0 MB in the beginning and 84.3 MB in the end (delta: 75.7 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:50,536 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 48]: 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 77#(not (= main_~i~0 (select (select |#memory_int| main_~pd2~0.base) main_~pd2~0.offset))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.41 ms. Allocated memory is still 142.1 MB. Free memory was 89.1 MB in the beginning and 78.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.80 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 78.9 MB in the beginning and 177.6 MB in the end (delta: -98.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 331.97 ms. Allocated memory is still 200.8 MB. Free memory was 177.6 MB in the beginning and 160.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 976.98 ms. Allocated memory is still 200.8 MB. Free memory was 160.0 MB in the beginning and 84.3 MB in the end (delta: 75.7 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...