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-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 17:18:51,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 17:18:51,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 17:18:51,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 17:18:51,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 17:18:51,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 17:18:51,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 17:18:51,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 17:18:51,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 17:18:51,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 17:18:51,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 17:18:51,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 17:18:51,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 17:18:51,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 17:18:51,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 17:18:51,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 17:18:51,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 17:18:51,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 17:18:51,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 17:18:51,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 17:18:51,948 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 17:18:51,963 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 17:18:51,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 17:18:51,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 17:18:51,964 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 17:18:51,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 17:18:51,965 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 17:18:51,965 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 17:18:51,965 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 17:18:51,965 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 17:18:51,966 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 17:18:51,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 17:18:51,966 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 17:18:51,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 17:18:51,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 17:18:51,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 17:18:51,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 17:18:51,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 17:18:51,968 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 17:18:51,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 17:18:51,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 17:18:51,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 17:18:51,969 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 17:18:51,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 17:18:51,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 17:18:51,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 17:18:51,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 17:18:51,970 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 17:18:51,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 17:18:51,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 17:18:51,970 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 17:18:51,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 17:18:52,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 17:18:52,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 17:18:52,017 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 17:18:52,017 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 17:18:52,018 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-11 17:18:52,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8064da4/9ed5df636432481bb94189c449638fe3/FLAG725c7307e [2019-09-11 17:18:52,653 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 17:18:52,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-11 17:18:52,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8064da4/9ed5df636432481bb94189c449638fe3/FLAG725c7307e [2019-09-11 17:18:52,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8064da4/9ed5df636432481bb94189c449638fe3 [2019-09-11 17:18:52,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 17:18:52,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 17:18:52,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 17:18:52,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 17:18:52,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 17:18:52,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:18:52" (1/1) ... [2019-09-11 17:18:52,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3840f152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:52, skipping insertion in model container [2019-09-11 17:18:52,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:18:52" (1/1) ... [2019-09-11 17:18:52,963 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 17:18:53,024 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 17:18:53,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 17:18:53,454 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 17:18:53,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 17:18:53,583 INFO L192 MainTranslator]: Completed translation [2019-09-11 17:18:53,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53 WrapperNode [2019-09-11 17:18:53,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 17:18:53,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 17:18:53,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 17:18:53,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 17:18:53,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (1/1) ... [2019-09-11 17:18:53,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (1/1) ... [2019-09-11 17:18:53,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (1/1) ... [2019-09-11 17:18:53,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (1/1) ... [2019-09-11 17:18:53,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (1/1) ... [2019-09-11 17:18:53,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (1/1) ... [2019-09-11 17:18:53,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (1/1) ... [2019-09-11 17:18:53,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 17:18:53,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 17:18:53,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 17:18:53,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 17:18:53,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:18:53" (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 17:18:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 17:18:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 17:18:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 17:18:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 17:18:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-11 17:18:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-11 17:18:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-11 17:18:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-11 17:18:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 17:18:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-11 17:18:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-11 17:18:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-11 17:18:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-11 17:18:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-11 17:18:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-11 17:18:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-11 17:18:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-11 17:18:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 17:18:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 17:18:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 17:18:54,521 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 17:18:54,521 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 17:18:54,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:18:54 BoogieIcfgContainer [2019-09-11 17:18:54,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 17:18:54,524 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 17:18:54,524 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 17:18:54,524 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 17:18:54,525 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:18:54" (1/1) ... [2019-09-11 17:18:54,560 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 17:18:54,675 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 17:18:56,739 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 17:18:56,803 INFO L272 AbstractInterpreter]: Visited 213 different actions 2189 times. Merged at 104 different actions 1257 times. Widened at 37 different actions 229 times. Performed 6377 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6377 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 517 fixpoints after 80 different actions. Largest state had 127 variables. [2019-09-11 17:18:56,803 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 17:18:56,808 INFO L168 Benchmark]: Toolchain (without parser) took 3860.39 ms. Allocated memory was 142.1 MB in the beginning and 253.8 MB in the end (delta: 111.7 MB). Free memory was 89.2 MB in the beginning and 181.3 MB in the end (delta: -92.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-09-11 17:18:56,810 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 17:18:56,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.42 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 89.0 MB in the beginning and 175.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-09-11 17:18:56,815 INFO L168 Benchmark]: Boogie Preprocessor took 79.31 ms. Allocated memory is still 202.9 MB. Free memory was 175.7 MB in the beginning and 173.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-11 17:18:56,818 INFO L168 Benchmark]: RCFGBuilder took 858.17 ms. Allocated memory is still 202.9 MB. Free memory was 173.2 MB in the beginning and 121.8 MB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2019-09-11 17:18:56,819 INFO L168 Benchmark]: Abstract Interpretation took 2279.58 ms. Allocated memory was 202.9 MB in the beginning and 253.8 MB in the end (delta: 50.9 MB). Free memory was 121.8 MB in the beginning and 181.3 MB in the end (delta: -59.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 17:18:56,836 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.42 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 89.0 MB in the beginning and 175.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.31 ms. Allocated memory is still 202.9 MB. Free memory was 175.7 MB in the beginning and 173.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 858.17 ms. Allocated memory is still 202.9 MB. Free memory was 173.2 MB in the beginning and 121.8 MB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2279.58 ms. Allocated memory was 202.9 MB in the beginning and 253.8 MB in the end (delta: 50.9 MB). Free memory was 121.8 MB in the beginning and 181.3 MB in the end (delta: -59.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 339]: 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: [L1] int __return_main; [L12] msg_t nomsg = (msg_t )-1; [L13] unsigned char r1 = '\x0'; [L14] port_t p1 = 0; [L15] char p1_old = '\x0'; [L16] char p1_new = '\x0'; [L17] char id1 = '\x0'; [L18] char st1 = '\x0'; [L19] msg_t send1 = '\x0'; [L20] _Bool mode1 = 0; [L21] port_t p2 = 0; [L22] char p2_old = '\x0'; [L23] char p2_new = '\x0'; [L24] char id2 = '\x0'; [L25] char st2 = '\x0'; [L26] msg_t send2 = '\x0'; [L27] _Bool mode2 = 0; [L28] port_t p3 = 0; [L29] char p3_old = '\x0'; [L30] char p3_new = '\x0'; [L31] char id3 = '\x0'; [L32] char st3 = '\x0'; [L33] msg_t send3 = '\x0'; [L34] _Bool mode3 = 0; [L35] port_t p4 = 0; [L36] char p4_old = '\x0'; [L37] char p4_new = '\x0'; [L38] char id4 = '\x0'; [L39] char st4 = '\x0'; [L40] msg_t send4 = '\x0'; [L41] _Bool mode4 = 0; [L46] void (*nodes[4])() = { &node1, &node2, &node3, &node4 }; [L50] int __return_2904; [L51] int __return_2995; [L52] int __return_3157; [L55] int main__c1; [L56] int main__i2; [L57] main__c1 = 0 [L58] r1 = __VERIFIER_nondet_uchar() [L59] id1 = __VERIFIER_nondet_char() [L60] st1 = __VERIFIER_nondet_char() [L61] send1 = __VERIFIER_nondet_char() [L62] mode1 = __VERIFIER_nondet_bool() [L63] id2 = __VERIFIER_nondet_char() [L64] st2 = __VERIFIER_nondet_char() [L65] send2 = __VERIFIER_nondet_char() [L66] mode2 = __VERIFIER_nondet_bool() [L67] id3 = __VERIFIER_nondet_char() [L68] st3 = __VERIFIER_nondet_char() [L69] send3 = __VERIFIER_nondet_char() [L70] mode3 = __VERIFIER_nondet_bool() [L71] id4 = __VERIFIER_nondet_char() [L72] st4 = __VERIFIER_nondet_char() [L73] send4 = __VERIFIER_nondet_char() [L74] mode4 = __VERIFIER_nondet_bool() [L76] int init__tmp; [L77] COND TRUE ((int)r1) == 0 [L79] COND TRUE ((int)id1) >= 0 [L81] COND TRUE ((int)st1) == 0 [L83] COND TRUE ((int)send1) == ((int)id1) [L85] COND TRUE ((int)mode1) == 0 [L87] COND TRUE ((int)id2) >= 0 [L89] COND TRUE ((int)st2) == 0 [L91] COND TRUE ((int)send2) == ((int)id2) [L93] COND TRUE ((int)mode2) == 0 [L95] COND TRUE ((int)id3) >= 0 [L97] COND TRUE ((int)st3) == 0 [L99] COND TRUE ((int)send3) == ((int)id3) [L101] COND TRUE ((int)mode3) == 0 [L103] COND TRUE ((int)id4) >= 0 [L105] COND TRUE ((int)st4) == 0 [L107] COND TRUE ((int)send4) == ((int)id4) [L109] COND TRUE ((int)mode4) == 0 [L111] COND TRUE ((int)id1) != ((int)id2) [L113] COND TRUE ((int)id1) != ((int)id3) [L115] COND TRUE ((int)id1) != ((int)id4) [L117] COND TRUE ((int)id2) != ((int)id3) [L119] COND TRUE ((int)id2) != ((int)id4) [L121] COND TRUE ((int)id3) != ((int)id4) [L123] init__tmp = 1 [L124] __return_2904 = init__tmp [L125] main__i2 = __return_2904 [L126] COND TRUE main__i2 != 0 [L128] p1_old = nomsg [L129] p1_new = nomsg [L130] p2_old = nomsg [L131] p2_new = nomsg [L132] p3_old = nomsg [L133] p3_new = nomsg [L134] p4_old = nomsg [L135] p4_new = nomsg [L136] main__i2 = 0 [L138] msg_t node1__m1; [L139] node1__m1 = nomsg [L140] COND FALSE !(!(mode1 == 0)) [L146] int node1____CPAchecker_TMP_0; [L147] COND TRUE send1 != nomsg [L149] COND TRUE p1_new == nomsg [L151] node1____CPAchecker_TMP_0 = send1 [L153] p1_new = node1____CPAchecker_TMP_0 [L154] mode1 = 1 [L156] msg_t node2__m2; [L157] node2__m2 = nomsg [L158] COND FALSE !(!(mode2 == 0)) [L164] int node2____CPAchecker_TMP_0; [L165] COND TRUE send2 != nomsg [L167] COND TRUE p2_new == nomsg [L169] node2____CPAchecker_TMP_0 = send2 [L171] p2_new = node2____CPAchecker_TMP_0 [L172] mode2 = 1 [L174] msg_t node3__m3; [L175] node3__m3 = nomsg [L176] COND FALSE !(!(mode3 == 0)) [L182] int node3____CPAchecker_TMP_0; [L183] COND TRUE send3 != nomsg [L185] COND TRUE p3_new == nomsg [L187] node3____CPAchecker_TMP_0 = send3 [L189] p3_new = node3____CPAchecker_TMP_0 [L190] mode3 = 1 [L192] msg_t node4__m4; [L193] node4__m4 = nomsg [L194] COND FALSE !(!(mode4 == 0)) [L200] int node4____CPAchecker_TMP_0; [L201] COND TRUE send4 != nomsg [L203] COND TRUE p4_new == nomsg [L205] node4____CPAchecker_TMP_0 = send4 [L207] p4_new = node4____CPAchecker_TMP_0 [L208] mode4 = 1 [L209] p1_old = p1_new [L210] p1_new = nomsg [L211] p2_old = p2_new [L212] p2_new = nomsg [L213] p3_old = p3_new [L214] p3_new = nomsg [L215] p4_old = p4_new [L216] p4_new = nomsg [L218] int check__tmp; [L219] COND TRUE (((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1 [L221] COND FALSE !(((int)r1) >= 4) [L227] COND TRUE (((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0 [L229] COND TRUE ((int)r1) < 4 [L231] check__tmp = 1 [L232] __return_2995 = check__tmp [L233] main__c1 = __return_2995 [L235] _Bool __tmp_1; [L236] __tmp_1 = main__c1 [L237] _Bool assert__arg; [L238] assert__arg = __tmp_1 [L239] COND FALSE !(assert__arg == 0) [L246] msg_t node1__m1; [L247] node1__m1 = nomsg [L248] COND TRUE !(mode1 == 0) [L250] COND FALSE !(r1 == 255) [L256] r1 = r1 + 1 [L257] node1__m1 = p4_old [L258] p4_old = nomsg [L259] COND FALSE !(((int)node1__m1) != ((int)nomsg)) [L265] mode1 = 0 [L267] msg_t node2__m2; [L268] node2__m2 = nomsg [L269] COND TRUE !(mode2 == 0) [L271] node2__m2 = p1_old [L272] p1_old = nomsg [L273] COND FALSE !(((int)node2__m2) != ((int)nomsg)) [L279] mode2 = 0 [L281] msg_t node3__m3; [L282] node3__m3 = nomsg [L283] COND TRUE !(mode3 == 0) [L285] node3__m3 = p2_old [L286] p2_old = nomsg [L287] COND TRUE ((int)node3__m3) != ((int)nomsg) [L289] COND FALSE !(((int)node3__m3) > ((int)id3)) [L667] COND TRUE ((int)node3__m3) == ((int)id3) [L669] st3 = 1 [L293] mode3 = 0 [L295] msg_t node4__m4; [L296] node4__m4 = nomsg [L297] COND TRUE !(mode4 == 0) [L299] node4__m4 = p3_old [L300] p3_old = nomsg [L301] COND FALSE !(((int)node4__m4) != ((int)nomsg)) [L307] mode4 = 0 [L308] p1_old = p1_new [L309] p1_new = nomsg [L310] p2_old = p2_new [L311] p2_new = nomsg [L312] p3_old = p3_new [L313] p3_new = nomsg [L314] p4_old = p4_new [L315] p4_new = nomsg [L318] int check__tmp; [L319] COND FALSE !((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1) [L636] check__tmp = 0 [L330] __return_3157 = check__tmp [L331] main__c1 = __return_3157 [L333] _Bool __tmp_2; [L334] __tmp_2 = main__c1 [L335] _Bool assert__arg; [L336] assert__arg = __tmp_2 [L337] COND TRUE assert__arg == 0 [L339] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...