./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.01.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.01.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 ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:12:49,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:12:49,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:12:49,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:12:49,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:12:49,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:12:49,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:12:49,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:12:49,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:12:49,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:12:49,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:12:49,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:12:49,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:12:49,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:12:49,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:12:49,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:12:49,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:12:49,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:12:49,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:12:49,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:12:49,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:12:49,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:12:49,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:12:49,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:12:49,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:12:49,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:12:49,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:12:49,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:12:49,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:12:49,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:12:49,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:12:49,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:12:49,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:12:49,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:12:49,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:12:49,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:12:49,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:12:49,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:12:49,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:12:49,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:12:49,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:12:49,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:12:49,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:12:49,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:12:49,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:12:49,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:12:49,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:12:49,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:12:49,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:12:49,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:12:49,900 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:12:49,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:12:49,901 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:12:49,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:12:49,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:12:49,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:12:49,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:12:49,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:12:49,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:12:49,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:12:49,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:12:49,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:12:49,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:12:49,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:12:49,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:12:49,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:12:49,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:12:49,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:12:49,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:12:49,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:12:49,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:12:49,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:12:49,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:12:49,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:12:49,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:12:49,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:12:49,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe [2021-12-15 11:12:50,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:12:50,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:12:50,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:12:50,151 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:12:50,152 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:12:50,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-12-15 11:12:50,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77276db48/227463a922cc4e0287c9ffe10ce2e031/FLAGf765f97a3 [2021-12-15 11:12:50,742 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:12:50,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-12-15 11:12:50,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77276db48/227463a922cc4e0287c9ffe10ce2e031/FLAGf765f97a3 [2021-12-15 11:12:51,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77276db48/227463a922cc4e0287c9ffe10ce2e031 [2021-12-15 11:12:51,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:12:51,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:12:51,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:12:51,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:12:51,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:12:51,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ee0c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51, skipping insertion in model container [2021-12-15 11:12:51,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:12:51,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:12:51,319 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.01.cil.c[706,719] [2021-12-15 11:12:51,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:12:51,383 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:12:51,393 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.01.cil.c[706,719] [2021-12-15 11:12:51,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:12:51,435 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:12:51,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51 WrapperNode [2021-12-15 11:12:51,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:12:51,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:12:51,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:12:51,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:12:51,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,475 INFO L137 Inliner]: procedures = 30, calls = 33, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 209 [2021-12-15 11:12:51,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:12:51,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:12:51,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:12:51,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:12:51,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:12:51,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:12:51,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:12:51,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:12:51,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (1/1) ... [2021-12-15 11:12:51,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:12:51,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:12:51,541 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 11:12:51,563 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 11:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-12-15 11:12:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-12-15 11:12:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-12-15 11:12:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-12-15 11:12:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-12-15 11:12:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-12-15 11:12:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-12-15 11:12:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-12-15 11:12:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:12:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-12-15 11:12:51,581 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-12-15 11:12:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:12:51,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:12:51,655 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:12:51,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:12:51,809 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:12:51,814 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:12:51,814 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-15 11:12:51,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:12:51 BoogieIcfgContainer [2021-12-15 11:12:51,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:12:51,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:12:51,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:12:51,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:12:51,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:12:51" (1/3) ... [2021-12-15 11:12:51,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e44493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:12:51, skipping insertion in model container [2021-12-15 11:12:51,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:51" (2/3) ... [2021-12-15 11:12:51,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e44493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:12:51, skipping insertion in model container [2021-12-15 11:12:51,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:12:51" (3/3) ... [2021-12-15 11:12:51,822 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2021-12-15 11:12:51,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:12:51,825 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:12:51,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:12:51,862 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 11:12:51,863 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:12:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.525) internal successors, (122), 82 states have internal predecessors, (122), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-15 11:12:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-15 11:12:51,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:12:51,883 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] [2021-12-15 11:12:51,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:12:51,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:12:51,888 INFO L85 PathProgramCache]: Analyzing trace with hash -20293138, now seen corresponding path program 1 times [2021-12-15 11:12:51,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:12:51,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685976079] [2021-12-15 11:12:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:12:51,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:12:51,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:12:51,966 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 11:12:51,974 INFO L158 Benchmark]: Toolchain (without parser) took 829.98ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 44.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-12-15 11:12:51,975 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory was 69.2MB in the beginning and 69.2MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:12:51,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.40ms. Allocated memory is still 98.6MB. Free memory was 63.2MB in the beginning and 72.3MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:12:51,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.14ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:12:51,977 INFO L158 Benchmark]: Boogie Preprocessor took 36.86ms. Allocated memory is still 98.6MB. Free memory was 70.1MB in the beginning and 68.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:12:51,977 INFO L158 Benchmark]: RCFGBuilder took 302.18ms. Allocated memory is still 98.6MB. Free memory was 68.6MB in the beginning and 54.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:12:51,982 INFO L158 Benchmark]: TraceAbstraction took 154.65ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 44.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:12:51,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory was 69.2MB in the beginning and 69.2MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.40ms. Allocated memory is still 98.6MB. Free memory was 63.2MB in the beginning and 72.3MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.14ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.86ms. Allocated memory is still 98.6MB. Free memory was 70.1MB in the beginning and 68.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.18ms. Allocated memory is still 98.6MB. Free memory was 68.6MB in the beginning and 54.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 154.65ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 44.4MB in the end (delta: 9.5MB). 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 11:12:52,034 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.01.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 ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:12:54,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:12:54,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:12:54,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:12:54,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:12:54,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:12:54,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:12:54,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:12:54,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:12:54,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:12:54,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:12:54,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:12:54,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:12:54,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:12:54,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:12:54,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:12:54,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:12:54,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:12:54,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:12:54,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:12:54,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:12:54,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:12:54,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:12:54,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:12:54,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:12:54,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:12:54,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:12:54,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:12:54,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:12:54,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:12:54,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:12:54,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:12:54,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:12:54,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:12:54,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:12:54,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:12:54,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:12:54,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:12:54,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:12:54,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:12:54,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:12:54,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:12:54,242 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:12:54,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:12:54,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:12:54,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:12:54,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:12:54,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:12:54,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:12:54,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:12:54,246 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:12:54,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:12:54,246 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:12:54,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:12:54,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:12:54,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:12:54,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:12:54,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:12:54,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:12:54,248 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:12:54,248 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:12:54,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:12:54,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:12:54,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:12:54,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:12:54,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:12:54,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:12:54,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:12:54,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:12:54,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:12:54,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:12:54,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:12:54,258 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:12:54,258 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:12:54,259 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:12:54,259 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:12:54,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:12:54,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:12:54,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:12:54,260 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe [2021-12-15 11:12:54,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:12:54,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:12:54,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:12:54,587 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:12:54,588 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:12:54,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-12-15 11:12:54,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd527bea/2d87ab7b475c45ac82f23326f9ba1409/FLAGe6357208d [2021-12-15 11:12:55,057 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:12:55,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-12-15 11:12:55,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd527bea/2d87ab7b475c45ac82f23326f9ba1409/FLAGe6357208d [2021-12-15 11:12:55,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd527bea/2d87ab7b475c45ac82f23326f9ba1409 [2021-12-15 11:12:55,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:12:55,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:12:55,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:12:55,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:12:55,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:12:55,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c92816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55, skipping insertion in model container [2021-12-15 11:12:55,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:12:55,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:12:55,618 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.01.cil.c[706,719] [2021-12-15 11:12:55,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:12:55,693 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:12:55,710 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.01.cil.c[706,719] [2021-12-15 11:12:55,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:12:55,758 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:12:55,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55 WrapperNode [2021-12-15 11:12:55,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:12:55,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:12:55,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:12:55,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:12:55,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,811 INFO L137 Inliner]: procedures = 30, calls = 33, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2021-12-15 11:12:55,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:12:55,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:12:55,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:12:55,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:12:55,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:12:55,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:12:55,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:12:55,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:12:55,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (1/1) ... [2021-12-15 11:12:55,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:12:55,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:12:55,882 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 11:12:55,899 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 11:12:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:12:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:12:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-12-15 11:12:55,918 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-12-15 11:12:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-12-15 11:12:55,918 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-12-15 11:12:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-12-15 11:12:55,918 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-12-15 11:12:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-12-15 11:12:55,919 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-12-15 11:12:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-12-15 11:12:55,919 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-12-15 11:12:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:12:55,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:12:55,991 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:12:55,992 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:12:56,330 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:12:56,337 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:12:56,337 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-15 11:12:56,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:12:56 BoogieIcfgContainer [2021-12-15 11:12:56,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:12:56,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:12:56,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:12:56,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:12:56,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:12:55" (1/3) ... [2021-12-15 11:12:56,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f25b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:12:56, skipping insertion in model container [2021-12-15 11:12:56,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:12:55" (2/3) ... [2021-12-15 11:12:56,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f25b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:12:56, skipping insertion in model container [2021-12-15 11:12:56,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:12:56" (3/3) ... [2021-12-15 11:12:56,357 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2021-12-15 11:12:56,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:12:56,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:12:56,397 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:12:56,402 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 11:12:56,402 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:12:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.525) internal successors, (122), 82 states have internal predecessors, (122), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-15 11:12:56,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-15 11:12:56,426 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:12:56,426 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] [2021-12-15 11:12:56,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:12:56,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:12:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash -20293138, now seen corresponding path program 1 times [2021-12-15 11:12:56,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:12:56,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065947349] [2021-12-15 11:12:56,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:12:56,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:12:56,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:12:56,459 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 11:12:56,471 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 11:12:56,505 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 11:12:56,705 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 11:12:56,706 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 11:12:56,713 INFO L158 Benchmark]: Toolchain (without parser) took 1247.18ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.9MB in the beginning and 43.6MB in the end (delta: -8.7MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-12-15 11:12:56,714 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.3MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:12:56,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.19ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.7MB in the beginning and 53.4MB in the end (delta: -18.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:12:56,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.35ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 51.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:12:56,717 INFO L158 Benchmark]: Boogie Preprocessor took 42.88ms. Allocated memory is still 71.3MB. Free memory was 51.3MB in the beginning and 49.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:12:56,718 INFO L158 Benchmark]: RCFGBuilder took 483.53ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 52.6MB in the end (delta: -2.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-12-15 11:12:56,723 INFO L158 Benchmark]: TraceAbstraction took 369.78ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 43.6MB in the end (delta: 8.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:12:56,727 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 56.6MB. Free memory was 38.4MB in the beginning and 38.3MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.19ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.7MB in the beginning and 53.4MB in the end (delta: -18.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.35ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 51.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.88ms. Allocated memory is still 71.3MB. Free memory was 51.3MB in the beginning and 49.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 483.53ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 52.6MB in the end (delta: -2.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 369.78ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 43.6MB in the end (delta: 8.5MB). Peak memory consumption was 6.3MB. 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 11:12:56,771 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