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.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 17:04:26,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 17:04:26,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 17:04:26,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 17:04:26,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 17:04:26,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 17:04:26,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 17:04:26,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 17:04:26,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 17:04:26,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 17:04:26,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 17:04:26,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 17:04:26,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 17:04:26,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 17:04:26,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 17:04:26,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 17:04:26,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 17:04:26,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 17:04:26,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 17:04:26,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 17:04:26,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 17:04:26,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 17:04:26,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 17:04:26,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 17:04:26,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 17:04:26,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 17:04:26,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 17:04:26,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 17:04:26,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 17:04:26,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 17:04:26,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 17:04:26,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 17:04:26,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 17:04:26,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 17:04:26,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 17:04:26,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 17:04:26,390 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 17:04:26,405 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 17:04:26,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 17:04:26,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 17:04:26,405 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 17:04:26,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 17:04:26,406 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 17:04:26,406 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 17:04:26,407 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 17:04:26,407 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 17:04:26,407 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 17:04:26,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 17:04:26,408 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 17:04:26,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 17:04:26,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 17:04:26,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 17:04:26,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 17:04:26,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 17:04:26,409 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 17:04:26,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 17:04:26,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 17:04:26,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 17:04:26,410 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 17:04:26,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 17:04:26,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 17:04:26,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 17:04:26,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 17:04:26,411 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 17:04:26,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 17:04:26,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 17:04:26,412 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 17:04:26,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 17:04:26,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 17:04:26,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 17:04:26,457 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 17:04:26,458 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 17:04:26,458 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2019-09-11 17:04:26,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d5302d/fe6c7db10a4a411b963cce4714e80af7/FLAG984095abf [2019-09-11 17:04:27,020 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 17:04:27,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2019-09-11 17:04:27,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d5302d/fe6c7db10a4a411b963cce4714e80af7/FLAG984095abf [2019-09-11 17:04:27,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d5302d/fe6c7db10a4a411b963cce4714e80af7 [2019-09-11 17:04:27,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 17:04:27,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 17:04:27,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 17:04:27,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 17:04:27,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 17:04:27,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5d63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27, skipping insertion in model container [2019-09-11 17:04:27,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,377 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 17:04:27,416 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 17:04:27,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 17:04:27,774 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 17:04:27,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 17:04:27,865 INFO L192 MainTranslator]: Completed translation [2019-09-11 17:04:27,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27 WrapperNode [2019-09-11 17:04:27,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 17:04:27,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 17:04:27,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 17:04:27,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 17:04:27,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (1/1) ... [2019-09-11 17:04:27,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 17:04:27,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 17:04:27,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 17:04:27,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 17:04:27,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:04:27" (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 17:04:27,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 17:04:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 17:04:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2019-09-11 17:04:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2019-09-11 17:04:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2019-09-11 17:04:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2019-09-11 17:04:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-11 17:04:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-11 17:04:27,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 17:04:27,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-11 17:04:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 17:04:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-11 17:04:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-11 17:04:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-11 17:04:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-11 17:04:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 17:04:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-11 17:04:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-11 17:04:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-11 17:04:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-11 17:04:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-11 17:04:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-11 17:04:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-11 17:04:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-11 17:04:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 17:04:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 17:04:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 17:04:28,564 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 17:04:28,565 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 17:04:28,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:04:28 BoogieIcfgContainer [2019-09-11 17:04:28,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 17:04:28,567 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 17:04:28,567 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 17:04:28,568 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 17:04:28,568 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:04:28" (1/1) ... [2019-09-11 17:04:28,605 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 17:04:28,759 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 17:04:32,077 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 17:04:32,132 INFO L272 AbstractInterpreter]: Visited 153 different actions 3372 times. Merged at 49 different actions 1278 times. Widened at 1 different actions 5 times. Performed 20414 root evaluator evaluations with a maximum evaluation depth of 6. Performed 20414 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 600 fixpoints after 45 different actions. Largest state had 94 variables. [2019-09-11 17:04:32,133 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 17:04:32,138 INFO L168 Benchmark]: Toolchain (without parser) took 4774.30 ms. Allocated memory was 140.5 MB in the beginning and 324.0 MB in the end (delta: 183.5 MB). Free memory was 87.9 MB in the beginning and 123.0 MB in the end (delta: -35.1 MB). Peak memory consumption was 148.4 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:32,139 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 17:04:32,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.60 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 87.5 MB in the beginning and 174.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:32,141 INFO L168 Benchmark]: Boogie Preprocessor took 51.64 ms. Allocated memory is still 200.3 MB. Free memory was 174.7 MB in the beginning and 172.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:32,144 INFO L168 Benchmark]: RCFGBuilder took 647.91 ms. Allocated memory is still 200.3 MB. Free memory was 172.2 MB in the beginning and 136.8 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:32,145 INFO L168 Benchmark]: Abstract Interpretation took 3566.33 ms. Allocated memory was 200.3 MB in the beginning and 324.0 MB in the end (delta: 123.7 MB). Free memory was 136.8 MB in the beginning and 123.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 137.5 MB. Max. memory is 7.1 GB. [2019-09-11 17:04:32,155 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 140.5 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 504.60 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 87.5 MB in the beginning and 174.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.64 ms. Allocated memory is still 200.3 MB. Free memory was 174.7 MB in the beginning and 172.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 647.91 ms. Allocated memory is still 200.3 MB. Free memory was 172.2 MB in the beginning and 136.8 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 3566.33 ms. Allocated memory was 200.3 MB in the beginning and 324.0 MB in the end (delta: 123.7 MB). Free memory was 136.8 MB in the beginning and 123.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 137.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 397]: 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] unsigned 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 ; [L204] void (*nodes[4])(void) = { & node1, & node2, & node3, & node4}; [L336] int c1 ; [L337] int i2 ; [L340] c1 = 0 [L341] r1 = __VERIFIER_nondet_uchar() [L342] id1 = __VERIFIER_nondet_char() [L343] st1 = __VERIFIER_nondet_char() [L344] send1 = __VERIFIER_nondet_char() [L345] mode1 = __VERIFIER_nondet_bool() [L346] id2 = __VERIFIER_nondet_char() [L347] st2 = __VERIFIER_nondet_char() [L348] send2 = __VERIFIER_nondet_char() [L349] mode2 = __VERIFIER_nondet_bool() [L350] id3 = __VERIFIER_nondet_char() [L351] st3 = __VERIFIER_nondet_char() [L352] send3 = __VERIFIER_nondet_char() [L353] mode3 = __VERIFIER_nondet_bool() [L354] id4 = __VERIFIER_nondet_char() [L355] st4 = __VERIFIER_nondet_char() [L356] send4 = __VERIFIER_nondet_char() [L357] mode4 = __VERIFIER_nondet_bool() [L358] CALL, EXPR init() [L207] int tmp ; [L210] COND TRUE (int )r1 == 0 [L211] COND TRUE (int )id1 >= 0 [L212] COND TRUE (int )st1 == 0 [L213] COND TRUE (int )send1 == (int )id1 [L214] COND TRUE (int )mode1 == 0 [L215] COND TRUE (int )id2 >= 0 [L216] COND TRUE (int )st2 == 0 [L217] COND TRUE (int )send2 == (int )id2 [L218] COND TRUE (int )mode2 == 0 [L219] COND TRUE (int )id3 >= 0 [L220] COND TRUE (int )st3 == 0 [L221] COND TRUE (int )send3 == (int )id3 [L222] COND TRUE (int )mode3 == 0 [L223] COND TRUE (int )id4 >= 0 [L224] COND TRUE (int )st4 == 0 [L225] COND TRUE (int )send4 == (int )id4 [L226] COND TRUE (int )mode4 == 0 [L227] COND TRUE (int )id1 != (int )id2 [L228] COND TRUE (int )id1 != (int )id3 [L229] COND TRUE (int )id1 != (int )id4 [L230] COND TRUE (int )id2 != (int )id3 [L231] COND TRUE (int )id2 != (int )id4 [L232] COND TRUE (int )id3 != (int )id4 [L233] tmp = 1 [L303] return (tmp); [L358] RET, EXPR init() [L358] i2 = init() [L360] p1_old = nomsg [L361] p1_new = nomsg [L362] p2_old = nomsg [L363] p2_new = nomsg [L364] p3_old = nomsg [L365] p3_new = nomsg [L366] p4_old = nomsg [L367] p4_new = nomsg [L368] i2 = 0 [L369] COND TRUE 1 [L371] CALL node1() [L102] msg_t m1 ; [L105] m1 = nomsg [L106] COND FALSE !(\read(mode1)) [L123] EXPR send1 != nomsg && p1_new == nomsg ? send1 : p1_new [L123] p1_new = send1 != nomsg && p1_new == nomsg ? send1 : p1_new [L124] mode1 = (_Bool)1 [L371] RET node1() [L372] CALL node2() [L131] msg_t m2 ; [L134] m2 = nomsg [L135] COND TRUE \read(mode2) [L136] m2 = p1_old [L137] p1_old = nomsg [L138] COND FALSE !((int )m2 != (int )nomsg) [L146] mode2 = (_Bool)0 [L372] RET node2() [L373] CALL node3() [L156] msg_t m3 ; [L159] m3 = nomsg [L160] COND TRUE \read(mode3) [L161] m3 = p2_old [L162] p2_old = nomsg [L163] COND FALSE !((int )m3 != (int )nomsg) [L171] mode3 = (_Bool)0 [L373] RET node3() [L374] CALL node4() [L181] msg_t m4 ; [L184] m4 = nomsg [L185] COND TRUE \read(mode4) [L186] m4 = p3_old [L187] p3_old = nomsg [L188] COND FALSE !((int )m4 != (int )nomsg) [L196] mode4 = (_Bool)0 [L374] RET node4() [L375] p1_old = p1_new [L376] p1_new = nomsg [L377] p2_old = p2_new [L378] p2_new = nomsg [L379] p3_old = p3_new [L380] p3_new = nomsg [L381] p4_old = p4_new [L382] p4_new = nomsg [L383] CALL, EXPR check() [L308] int tmp ; [L311] COND FALSE !((((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1) [L329] tmp = 0 [L331] return (tmp); [L383] RET, EXPR check() [L383] c1 = check() [L384] CALL assert(c1) [L395] COND TRUE ! arg [L397] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...