./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.12.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 062c7418109a213aa13d25a99437d8241cca4f6492c123259890838dc94aff90 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:12:59,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:12:59,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:12:59,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:12:59,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:12:59,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:12:59,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:12:59,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:12:59,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:12:59,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:12:59,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:12:59,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:12:59,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:12:59,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:12:59,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:12:59,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:12:59,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:12:59,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:12:59,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:12:59,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:12:59,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:12:59,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:12:59,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:12:59,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:13:00,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:13:00,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:13:00,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:13:00,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:13:00,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:13:00,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:13:00,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:13:00,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:13:00,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:13:00,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:13:00,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:13:00,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:13:00,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:13:00,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:13:00,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:13:00,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:13:00,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:13:00,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:13:00,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:13:00,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:13:00,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:13:00,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:13:00,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:13:00,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:13:00,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:13:00,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:13:00,064 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:13:00,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:13:00,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:13:00,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:13:00,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:13:00,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:13:00,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:13:00,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:13:00,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:13:00,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:13:00,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:13:00,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:13:00,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:13:00,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:13:00,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:13:00,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:13:00,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:13:00,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:13:00,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:13:00,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:13:00,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:13:00,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:13:00,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:13:00,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:13:00,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:13:00,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:13:00,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062c7418109a213aa13d25a99437d8241cca4f6492c123259890838dc94aff90 [2021-12-15 11:13:00,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:13:00,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:13:00,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:13:00,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:13:00,315 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:13:00,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.12.cil.c [2021-12-15 11:13:00,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d20afa69c/8424b1b6724b4d699f54fa1cec1c2d6c/FLAG532c2bf22 [2021-12-15 11:13:00,775 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:13:00,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.12.cil.c [2021-12-15 11:13:00,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d20afa69c/8424b1b6724b4d699f54fa1cec1c2d6c/FLAG532c2bf22 [2021-12-15 11:13:00,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d20afa69c/8424b1b6724b4d699f54fa1cec1c2d6c [2021-12-15 11:13:00,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:13:00,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:13:00,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:13:00,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:13:00,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:13:00,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:13:00" (1/1) ... [2021-12-15 11:13:00,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc78464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:00, skipping insertion in model container [2021-12-15 11:13:00,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:13:00" (1/1) ... [2021-12-15 11:13:00,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:13:00,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:13:01,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.12.cil.c[706,719] [2021-12-15 11:13:01,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:13:01,171 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:13:01,178 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.12.cil.c[706,719] [2021-12-15 11:13:01,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:13:01,242 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:13:01,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01 WrapperNode [2021-12-15 11:13:01,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:13:01,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:13:01,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:13:01,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:13:01,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,307 INFO L137 Inliner]: procedures = 52, calls = 66, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 834 [2021-12-15 11:13:01,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:13:01,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:13:01,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:13:01,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:13:01,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:13:01,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:13:01,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:13:01,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:13:01,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (1/1) ... [2021-12-15 11:13:01,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:13:01,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:13:01,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:13:01,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:13:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:13:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-12-15 11:13:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-12-15 11:13:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-12-15 11:13:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-12-15 11:13:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-12-15 11:13:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-12-15 11:13:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-12-15 11:13:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-12-15 11:13:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-12-15 11:13:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-12-15 11:13:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-12-15 11:13:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-12-15 11:13:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:13:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:13:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:13:01,589 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:13:01,600 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:13:02,222 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:13:02,230 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:13:02,230 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-15 11:13:02,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:13:02 BoogieIcfgContainer [2021-12-15 11:13:02,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:13:02,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:13:02,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:13:02,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:13:02,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:13:00" (1/3) ... [2021-12-15 11:13:02,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ae4dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:13:02, skipping insertion in model container [2021-12-15 11:13:02,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:01" (2/3) ... [2021-12-15 11:13:02,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ae4dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:13:02, skipping insertion in model container [2021-12-15 11:13:02,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:13:02" (3/3) ... [2021-12-15 11:13:02,245 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.12.cil.c [2021-12-15 11:13:02,249 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:13:02,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:13:02,281 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:13:02,285 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:13:02,286 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:13:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 378 states, 345 states have (on average 1.663768115942029) internal successors, (574), 347 states have internal predecessors, (574), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-15 11:13:02,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-15 11:13:02,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:13:02,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:13:02,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:13:02,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:13:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1515639638, now seen corresponding path program 1 times [2021-12-15 11:13:02,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:13:02,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105901151] [2021-12-15 11:13:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:13:02,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:13:02,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:13:02,371 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:13:02,379 INFO L158 Benchmark]: Toolchain (without parser) took 1561.06ms. Allocated memory is still 123.7MB. Free memory was 91.0MB in the beginning and 70.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2021-12-15 11:13:02,380 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:13:02,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.53ms. Allocated memory is still 123.7MB. Free memory was 90.7MB in the beginning and 89.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:13:02,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.01ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 85.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:13:02,383 INFO L158 Benchmark]: Boogie Preprocessor took 64.56ms. Allocated memory is still 123.7MB. Free memory was 85.3MB in the beginning and 81.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:13:02,383 INFO L158 Benchmark]: RCFGBuilder took 859.56ms. Allocated memory is still 123.7MB. Free memory was 81.6MB in the beginning and 82.5MB in the end (delta: -859.7kB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2021-12-15 11:13:02,387 INFO L158 Benchmark]: TraceAbstraction took 143.56ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 70.5MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:13:02,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.53ms. Allocated memory is still 123.7MB. Free memory was 90.7MB in the beginning and 89.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.01ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 85.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.56ms. Allocated memory is still 123.7MB. Free memory was 85.3MB in the beginning and 81.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 859.56ms. Allocated memory is still 123.7MB. Free memory was 81.6MB in the beginning and 82.5MB in the end (delta: -859.7kB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 143.56ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 70.5MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:13:02,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.12.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 062c7418109a213aa13d25a99437d8241cca4f6492c123259890838dc94aff90 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:13:04,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:13:04,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:13:04,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:13:04,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:13:04,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:13:04,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:13:04,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:13:04,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:13:04,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:13:04,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:13:04,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:13:04,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:13:04,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:13:04,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:13:04,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:13:04,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:13:04,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:13:04,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:13:04,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:13:04,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:13:04,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:13:04,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:13:04,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:13:04,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:13:04,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:13:04,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:13:04,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:13:04,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:13:04,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:13:04,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:13:04,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:13:04,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:13:04,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:13:04,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:13:04,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:13:04,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:13:04,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:13:04,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:13:04,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:13:04,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:13:04,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:13:04,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:13:04,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:13:04,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:13:04,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:13:04,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:13:04,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:13:04,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:13:04,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:13:04,285 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:13:04,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:13:04,285 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:13:04,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:13:04,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:13:04,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:13:04,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:13:04,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:13:04,286 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:13:04,286 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:13:04,287 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:13:04,287 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:13:04,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:13:04,287 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:13:04,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:13:04,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:13:04,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:13:04,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:13:04,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:13:04,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:13:04,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:13:04,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:13:04,288 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:13:04,289 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:13:04,289 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:13:04,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:13:04,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:13:04,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:13:04,289 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:13:04,290 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062c7418109a213aa13d25a99437d8241cca4f6492c123259890838dc94aff90 [2021-12-15 11:13:04,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:13:04,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:13:04,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:13:04,567 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:13:04,567 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:13:04,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.12.cil.c [2021-12-15 11:13:04,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0de060f/8e882d0d046a44859a2e6b3dbe29955b/FLAG8a3ea29bc [2021-12-15 11:13:05,094 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:13:05,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.12.cil.c [2021-12-15 11:13:05,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0de060f/8e882d0d046a44859a2e6b3dbe29955b/FLAG8a3ea29bc [2021-12-15 11:13:05,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0de060f/8e882d0d046a44859a2e6b3dbe29955b [2021-12-15 11:13:05,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:13:05,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:13:05,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:13:05,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:13:05,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:13:05,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7946ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05, skipping insertion in model container [2021-12-15 11:13:05,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:13:05,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:13:05,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.12.cil.c[706,719] [2021-12-15 11:13:05,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:13:05,464 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:13:05,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.12.cil.c[706,719] [2021-12-15 11:13:05,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:13:05,571 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:13:05,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05 WrapperNode [2021-12-15 11:13:05,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:13:05,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:13:05,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:13:05,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:13:05,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,631 INFO L137 Inliner]: procedures = 52, calls = 66, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 804 [2021-12-15 11:13:05,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:13:05,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:13:05,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:13:05,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:13:05,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:13:05,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:13:05,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:13:05,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:13:05,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (1/1) ... [2021-12-15 11:13:05,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:13:05,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:13:05,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:13:05,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:13:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:13:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-12-15 11:13:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-12-15 11:13:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-12-15 11:13:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-12-15 11:13:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-12-15 11:13:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-12-15 11:13:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:13:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-12-15 11:13:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-12-15 11:13:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-12-15 11:13:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-12-15 11:13:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-12-15 11:13:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-12-15 11:13:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:13:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:13:05,869 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:13:05,870 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:13:06,427 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:13:06,434 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:13:06,434 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-15 11:13:06,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:13:06 BoogieIcfgContainer [2021-12-15 11:13:06,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:13:06,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:13:06,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:13:06,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:13:06,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:13:05" (1/3) ... [2021-12-15 11:13:06,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2606d517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:13:06, skipping insertion in model container [2021-12-15 11:13:06,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:13:05" (2/3) ... [2021-12-15 11:13:06,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2606d517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:13:06, skipping insertion in model container [2021-12-15 11:13:06,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:13:06" (3/3) ... [2021-12-15 11:13:06,441 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.12.cil.c [2021-12-15 11:13:06,445 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:13:06,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:13:06,477 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:13:06,481 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:13:06,482 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:13:06,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 378 states, 345 states have (on average 1.663768115942029) internal successors, (574), 347 states have internal predecessors, (574), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-15 11:13:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-15 11:13:06,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:13:06,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:13:06,511 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:13:06,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:13:06,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1515639638, now seen corresponding path program 1 times [2021-12-15 11:13:06,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:13:06,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624241556] [2021-12-15 11:13:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:13:06,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:13:06,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:13:06,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 11:13:06,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 11:13:06,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 11:13:06,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 11:13:06,807 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:13:06,811 INFO L158 Benchmark]: Toolchain (without parser) took 1676.42ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 46.5MB in the beginning and 39.1MB in the end (delta: 7.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-12-15 11:13:06,812 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 55.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:13:06,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.41ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 38.0MB in the end (delta: 8.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:13:06,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.99ms. Allocated memory is still 65.0MB. Free memory was 37.7MB in the beginning and 34.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:13:06,813 INFO L158 Benchmark]: Boogie Preprocessor took 44.61ms. Allocated memory is still 65.0MB. Free memory was 34.1MB in the beginning and 30.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:13:06,813 INFO L158 Benchmark]: RCFGBuilder took 758.28ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 30.3MB in the beginning and 51.4MB in the end (delta: -21.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-12-15 11:13:06,814 INFO L158 Benchmark]: TraceAbstraction took 372.69ms. Allocated memory is still 83.9MB. Free memory was 51.0MB in the beginning and 39.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:13:06,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 55.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.41ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 38.0MB in the end (delta: 8.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.99ms. Allocated memory is still 65.0MB. Free memory was 37.7MB in the beginning and 34.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.61ms. Allocated memory is still 65.0MB. Free memory was 34.1MB in the beginning and 30.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 758.28ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 30.3MB in the beginning and 51.4MB in the end (delta: -21.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 372.69ms. Allocated memory is still 83.9MB. Free memory was 51.0MB in the beginning and 39.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:13:06,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable