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/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 17:04:25,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 17:04:25,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 17:04:25,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 17:04:25,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 17:04:25,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 17:04:25,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 17:04:25,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 17:04:25,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 17:04:25,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 17:04:25,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 17:04:25,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 17:04:25,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 17:04:25,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 17:04:25,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 17:04:25,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 17:04:25,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 17:04:25,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 17:04:25,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 17:04:25,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 17:04:25,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 17:04:25,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 17:04:25,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 17:04:25,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 17:04:25,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-11 17:04:25,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-11 17:04:25,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-11 17:04:25,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-11 17:04:25,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-11 17:04:25,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-11 17:04:25,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 17:04:25,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 17:04:25,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 17:04:25,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 17:04:25,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 17:04:25,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 17:04:25,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 17:04:25,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 17:04:25,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 17:04:25,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 17:04:25,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 17:04:25,270 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 [2019-09-11 17:04:25,294 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 17:04:25,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 17:04:25,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 17:04:25,295 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 17:04:25,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 17:04:25,296 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 17:04:25,297 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 17:04:25,297 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 17:04:25,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 17:04:25,298 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 17:04:25,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 17:04:25,298 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 17:04:25,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 17:04:25,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 17:04:25,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 17:04:25,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 17:04:25,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 17:04:25,301 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 17:04:25,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 17:04:25,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 17:04:25,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 17:04:25,302 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 17:04:25,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 17:04:25,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 17:04:25,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 17:04:25,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 17:04:25,303 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 17:04:25,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 17:04:25,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 17:04:25,304 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 17:04:25,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 17:04:25,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 17:04:25,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 17:04:25,375 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 17:04:25,375 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 17:04:25,376 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2019-09-11 17:04:25,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8639737/28ccd523c3784aafabe0716429749139/FLAGb59dd9860 [2019-09-11 17:04:25,883 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 17:04:25,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2019-09-11 17:04:25,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8639737/28ccd523c3784aafabe0716429749139/FLAGb59dd9860 [2019-09-11 17:04:26,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8639737/28ccd523c3784aafabe0716429749139 [2019-09-11 17:04:26,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 17:04:26,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 17:04:26,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 17:04:26,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 17:04:26,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 17:04:26,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779b0c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26, skipping insertion in model container [2019-09-11 17:04:26,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,246 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 17:04:26,296 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 17:04:26,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 17:04:26,649 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 17:04:26,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 17:04:26,717 INFO L192 MainTranslator]: Completed translation [2019-09-11 17:04:26,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26 WrapperNode [2019-09-11 17:04:26,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 17:04:26,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 17:04:26,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 17:04:26,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 17:04:26,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (1/1) ... [2019-09-11 17:04:26,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 17:04:26,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 17:04:26,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 17:04:26,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 17:04:26,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:26" (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 [2019-09-11 17:04:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 17:04:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 17:04:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-11 17:04:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 17:04:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-11 17:04:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-11 17:04:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-11 17:04:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 17:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-11 17:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-11 17:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-11 17:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-11 17:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-11 17:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-11 17:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-11 17:04:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-11 17:04:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 17:04:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 17:04:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 17:04:27,400 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 17:04:27,400 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 17:04:27,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:04:27 BoogieIcfgContainer [2019-09-11 17:04:27,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 17:04:27,406 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 17:04:27,406 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 17:04:27,406 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 17:04:27,410 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,450 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 17:04:27,639 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 17:04:30,998 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 17:04:31,034 INFO L272 AbstractInterpreter]: Visited 155 different actions 3726 times. Merged at 49 different actions 1502 times. Widened at 1 different actions 7 times. Performed 20341 root evaluator evaluations with a maximum evaluation depth of 6. Performed 20341 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 641 fixpoints after 41 different actions. Largest state had 95 variables. [2019-09-11 17:04:31,035 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 17:04:31,038 INFO L168 Benchmark]: Toolchain (without parser) took 4807.11 ms. Allocated memory was 135.3 MB in the beginning and 332.9 MB in the end (delta: 197.7 MB). Free memory was 86.7 MB in the beginning and 184.7 MB in the end (delta: -98.0 MB). Peak memory consumption was 99.7 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:31,039 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 135.3 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 17:04:31,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.50 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 86.5 MB in the beginning and 173.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:31,041 INFO L168 Benchmark]: Boogie Preprocessor took 47.52 ms. Allocated memory is still 198.7 MB. Free memory was 173.2 MB in the beginning and 171.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:31,042 INFO L168 Benchmark]: RCFGBuilder took 639.15 ms. Allocated memory is still 198.7 MB. Free memory was 170.7 MB in the beginning and 136.0 MB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:31,043 INFO L168 Benchmark]: Abstract Interpretation took 3629.12 ms. Allocated memory was 198.7 MB in the beginning and 332.9 MB in the end (delta: 134.2 MB). Free memory was 135.3 MB in the beginning and 184.7 MB in the end (delta: -49.3 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:31,048 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 135.3 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 487.50 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 86.5 MB in the beginning and 173.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.52 ms. Allocated memory is still 198.7 MB. Free memory was 173.2 MB in the beginning and 171.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 639.15 ms. Allocated memory is still 198.7 MB. Free memory was 170.7 MB in the beginning and 136.0 MB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 3629.12 ms. Allocated memory was 198.7 MB in the beginning and 332.9 MB in the end (delta: 134.2 MB). Free memory was 135.3 MB in the beginning and 184.7 MB in the end (delta: -49.3 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 395]: 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: [L70] msg_t nomsg = (msg_t )-1; [L71] char r1 ; [L72] port_t p1 ; [L73] char p1_old ; [L74] char p1_new ; [L75] char id1 ; [L76] char st1 ; [L77] msg_t send1 ; [L78] _Bool mode1 ; [L79] port_t p2 ; [L80] char p2_old ; [L81] char p2_new ; [L82] char id2 ; [L83] char st2 ; [L84] msg_t send2 ; [L85] _Bool mode2 ; [L86] port_t p3 ; [L87] char p3_old ; [L88] char p3_new ; [L89] char id3 ; [L90] char st3 ; [L91] msg_t send3 ; [L92] _Bool mode3 ; [L93] port_t p4 ; [L94] char p4_old ; [L95] char p4_new ; [L96] char id4 ; [L97] char st4 ; [L98] msg_t send4 ; [L99] _Bool mode4 ; [L201] void (*nodes[4])(void) = { & node1, & node2, & node3, & node4}; [L333] int c1 ; [L334] int i2 ; [L337] c1 = 0 [L338] r1 = __VERIFIER_nondet_char() [L339] id1 = __VERIFIER_nondet_char() [L340] st1 = __VERIFIER_nondet_char() [L341] send1 = __VERIFIER_nondet_char() [L342] mode1 = __VERIFIER_nondet_bool() [L343] id2 = __VERIFIER_nondet_char() [L344] st2 = __VERIFIER_nondet_char() [L345] send2 = __VERIFIER_nondet_char() [L346] mode2 = __VERIFIER_nondet_bool() [L347] id3 = __VERIFIER_nondet_char() [L348] st3 = __VERIFIER_nondet_char() [L349] send3 = __VERIFIER_nondet_char() [L350] mode3 = __VERIFIER_nondet_bool() [L351] id4 = __VERIFIER_nondet_char() [L352] st4 = __VERIFIER_nondet_char() [L353] send4 = __VERIFIER_nondet_char() [L354] mode4 = __VERIFIER_nondet_bool() [L355] CALL, EXPR init() [L204] int tmp ; [L207] COND TRUE (int )r1 == 0 [L208] COND TRUE (int )id1 >= 0 [L209] COND TRUE (int )st1 == 0 [L210] COND TRUE (int )send1 == (int )id1 [L211] COND TRUE (int )mode1 == 0 [L212] COND TRUE (int )id2 >= 0 [L213] COND TRUE (int )st2 == 0 [L214] COND TRUE (int )send2 == (int )id2 [L215] COND TRUE (int )mode2 == 0 [L216] COND TRUE (int )id3 >= 0 [L217] COND TRUE (int )st3 == 0 [L218] COND TRUE (int )send3 == (int )id3 [L219] COND TRUE (int )mode3 == 0 [L220] COND TRUE (int )id4 >= 0 [L221] COND TRUE (int )st4 == 0 [L222] COND TRUE (int )send4 == (int )id4 [L223] COND TRUE (int )mode4 == 0 [L224] COND TRUE (int )id1 != (int )id2 [L225] COND TRUE (int )id1 != (int )id3 [L226] COND TRUE (int )id1 != (int )id4 [L227] COND TRUE (int )id2 != (int )id3 [L228] COND TRUE (int )id2 != (int )id4 [L229] COND TRUE (int )id3 != (int )id4 [L230] tmp = 1 [L300] return (tmp); [L355] RET, EXPR init() [L355] i2 = init() [L357] p1_old = nomsg [L358] p1_new = nomsg [L359] p2_old = nomsg [L360] p2_new = nomsg [L361] p3_old = nomsg [L362] p3_new = nomsg [L363] p4_old = nomsg [L364] p4_new = nomsg [L365] i2 = 0 [L366] COND TRUE i2 < 8 [L368] CALL node1() [L102] msg_t m1 ; [L105] m1 = nomsg [L106] COND TRUE \read(mode1) [L107] r1 = (char )((int )r1 + 1) [L108] m1 = p4_old [L109] p4_old = nomsg [L110] COND FALSE !((int )m1 != (int )nomsg) [L118] mode1 = (_Bool)0 [L368] RET node1() [L369] CALL node2() [L128] msg_t m2 ; [L131] m2 = nomsg [L132] COND FALSE !(\read(mode2)) [L145] EXPR send2 != nomsg && p2_new == nomsg ? send2 : p2_new [L145] p2_new = send2 != nomsg && p2_new == nomsg ? send2 : p2_new [L146] mode2 = (_Bool)1 [L369] RET node2() [L370] CALL node3() [L153] msg_t m3 ; [L156] m3 = nomsg [L157] COND FALSE !(\read(mode3)) [L170] EXPR send3 != nomsg && p3_new == nomsg ? send3 : p3_new [L170] p3_new = send3 != nomsg && p3_new == nomsg ? send3 : p3_new [L171] mode3 = (_Bool)1 [L370] RET node3() [L371] CALL node4() [L178] msg_t m4 ; [L181] m4 = nomsg [L182] COND TRUE \read(mode4) [L183] m4 = p3_old [L184] p3_old = nomsg [L185] COND FALSE !((int )m4 != (int )nomsg) [L193] mode4 = (_Bool)0 [L371] RET node4() [L372] p1_old = p1_new [L373] p1_new = nomsg [L374] p2_old = p2_new [L375] p2_new = nomsg [L376] p3_old = p3_new [L377] p3_new = nomsg [L378] p4_old = p4_new [L379] p4_new = nomsg [L380] CALL, EXPR check() [L305] int tmp ; [L308] COND FALSE !((((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1) [L326] tmp = 0 [L328] return (tmp); [L380] RET, EXPR check() [L380] c1 = check() [L381] CALL assert(c1) [L393] COND TRUE ! arg [L395] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...