./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/weaver/parallel-bluetooth.wvr.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 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:03:30,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:03:30,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:03:30,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:03:30,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:03:30,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:03:30,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:03:30,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:03:30,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:03:30,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:03:30,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:03:30,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:03:30,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:03:30,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:03:30,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:03:30,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:03:30,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:03:30,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:03:30,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:03:30,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:03:30,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:03:30,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:03:30,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:03:30,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:03:30,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:03:30,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:03:30,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:03:30,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:03:30,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:03:30,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:03:30,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:03:30,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:03:30,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:03:30,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:03:30,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:03:30,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:03:30,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:03:30,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:03:30,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:03:30,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:03:30,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:03:30,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 03:03:30,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:03:30,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:03:30,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:03:30,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:03:30,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:03:30,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:03:30,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:03:30,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:03:30,216 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:03:30,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:03:30,217 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 03:03:30,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:03:30,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 03:03:30,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:03:30,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:03:30,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:03:30,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:03:30,218 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 03:03:30,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:03:30,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:03:30,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:03:30,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:03:30,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:03:30,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:03:30,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:03:30,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:03:30,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:03:30,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:03:30,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:03:30,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:03:30,220 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:03:30,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:03:30,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:03:30,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:03:30,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e [2021-12-16 03:03:30,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:03:30,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:03:30,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:03:30,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:03:30,439 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:03:30,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-12-16 03:03:30,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a8a4b20/614798e3294346499f5f3f42a08a48c4/FLAGac2cd1a5c [2021-12-16 03:03:30,818 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:03:30,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-12-16 03:03:30,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a8a4b20/614798e3294346499f5f3f42a08a48c4/FLAGac2cd1a5c [2021-12-16 03:03:31,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a8a4b20/614798e3294346499f5f3f42a08a48c4 [2021-12-16 03:03:31,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:03:31,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:03:31,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:03:31,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:03:31,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:03:31,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d2370c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31, skipping insertion in model container [2021-12-16 03:03:31,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:03:31,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:03:31,442 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/weaver/parallel-bluetooth.wvr.c[3134,3147] [2021-12-16 03:03:31,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:03:31,456 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:03:31,489 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/weaver/parallel-bluetooth.wvr.c[3134,3147] [2021-12-16 03:03:31,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:03:31,503 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:03:31,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31 WrapperNode [2021-12-16 03:03:31,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:03:31,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:03:31,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:03:31,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:03:31,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,548 INFO L137 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2021-12-16 03:03:31,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:03:31,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:03:31,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:03:31,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:03:31,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:03:31,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:03:31,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:03:31,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:03:31,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (1/1) ... [2021-12-16 03:03:31,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:03:31,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:03:31,610 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) [2021-12-16 03:03:31,631 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 [2021-12-16 03:03:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:03:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-16 03:03:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-16 03:03:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-16 03:03:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-16 03:03:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:03:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:03:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:03:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-16 03:03:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-16 03:03:31,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:03:31,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:03:31,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:03:31,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:03:31,641 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-16 03:03:31,694 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:03:31,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:03:31,899 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:03:31,929 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:03:31,929 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:03:31,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:03:31 BoogieIcfgContainer [2021-12-16 03:03:31,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:03:31,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:03:31,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:03:31,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:03:31,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:03:31" (1/3) ... [2021-12-16 03:03:31,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b988b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:03:31, skipping insertion in model container [2021-12-16 03:03:31,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:31" (2/3) ... [2021-12-16 03:03:31,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b988b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:03:31, skipping insertion in model container [2021-12-16 03:03:31,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:03:31" (3/3) ... [2021-12-16 03:03:31,940 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2021-12-16 03:03:31,945 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 03:03:31,946 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:03:31,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:03:31,946 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 03:03:31,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,983 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,983 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,983 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,983 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,984 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,984 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,989 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:03:31,992 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-16 03:03:32,023 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:03:32,029 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 [2021-12-16 03:03:32,029 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 03:03:32,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 139 transitions, 294 flow [2021-12-16 03:03:32,120 INFO L129 PetriNetUnfolder]: 9/137 cut-off events. [2021-12-16 03:03:32,120 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-16 03:03:32,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 9/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2021-12-16 03:03:32,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 139 transitions, 294 flow [2021-12-16 03:03:32,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 128 transitions, 268 flow [2021-12-16 03:03:32,150 INFO L129 PetriNetUnfolder]: 9/127 cut-off events. [2021-12-16 03:03:32,150 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-16 03:03:32,151 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:32,155 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-16 03:03:32,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:03:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:32,162 INFO L85 PathProgramCache]: Analyzing trace with hash -832133839, now seen corresponding path program 1 times [2021-12-16 03:03:32,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:32,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869552877] [2021-12-16 03:03:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:32,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:32,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:32,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:32,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869552877] [2021-12-16 03:03:32,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869552877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:32,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:32,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:03:32,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450862576] [2021-12-16 03:03:32,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:32,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:03:32,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:32,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:03:32,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:03:32,577 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 139 [2021-12-16 03:03:32,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:32,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:32,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 139 [2021-12-16 03:03:32,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:32,742 INFO L129 PetriNetUnfolder]: 26/216 cut-off events. [2021-12-16 03:03:32,743 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2021-12-16 03:03:32,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 216 events. 26/216 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 510 event pairs, 8 based on Foata normal form. 11/208 useless extension candidates. Maximal degree in co-relation 167. Up to 54 conditions per place. [2021-12-16 03:03:32,746 INFO L132 encePairwiseOnDemand]: 120/139 looper letters, 42 selfloop transitions, 7 changer transitions 7/129 dead transitions. [2021-12-16 03:03:32,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 388 flow [2021-12-16 03:03:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:03:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-16 03:03:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2021-12-16 03:03:32,761 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6738609112709832 [2021-12-16 03:03:32,761 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 562 transitions. [2021-12-16 03:03:32,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 562 transitions. [2021-12-16 03:03:32,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:32,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 562 transitions. [2021-12-16 03:03:32,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:32,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:32,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:32,778 INFO L186 Difference]: Start difference. First operand has 126 places, 128 transitions, 268 flow. Second operand 6 states and 562 transitions. [2021-12-16 03:03:32,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 388 flow [2021-12-16 03:03:32,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 129 transitions, 376 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-16 03:03:32,786 INFO L242 Difference]: Finished difference. Result has 128 places, 116 transitions, 261 flow [2021-12-16 03:03:32,788 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=128, PETRI_TRANSITIONS=116} [2021-12-16 03:03:32,790 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 2 predicate places. [2021-12-16 03:03:32,791 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 116 transitions, 261 flow [2021-12-16 03:03:32,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:32,791 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:32,791 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-16 03:03:32,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:03:32,792 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:03:32,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:32,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1917017462, now seen corresponding path program 1 times [2021-12-16 03:03:32,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:32,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297534184] [2021-12-16 03:03:32,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:32,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:32,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:32,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297534184] [2021-12-16 03:03:32,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297534184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:32,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:32,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 03:03:32,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477863442] [2021-12-16 03:03:32,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:32,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 03:03:32,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:32,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 03:03:32,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-16 03:03:33,000 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2021-12-16 03:03:33,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 116 transitions, 261 flow. Second operand has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:33,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2021-12-16 03:03:33,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:33,200 INFO L129 PetriNetUnfolder]: 57/334 cut-off events. [2021-12-16 03:03:33,201 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-12-16 03:03:33,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 334 events. 57/334 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1307 event pairs, 29 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 270. Up to 87 conditions per place. [2021-12-16 03:03:33,203 INFO L132 encePairwiseOnDemand]: 127/139 looper letters, 61 selfloop transitions, 17 changer transitions 0/148 dead transitions. [2021-12-16 03:03:33,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 148 transitions, 489 flow [2021-12-16 03:03:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 03:03:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-16 03:03:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1016 transitions. [2021-12-16 03:03:33,215 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6091127098321343 [2021-12-16 03:03:33,215 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1016 transitions. [2021-12-16 03:03:33,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1016 transitions. [2021-12-16 03:03:33,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:33,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1016 transitions. [2021-12-16 03:03:33,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 84.66666666666667) internal successors, (1016), 12 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,221 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,222 INFO L186 Difference]: Start difference. First operand has 128 places, 116 transitions, 261 flow. Second operand 12 states and 1016 transitions. [2021-12-16 03:03:33,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 148 transitions, 489 flow [2021-12-16 03:03:33,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 148 transitions, 480 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-16 03:03:33,226 INFO L242 Difference]: Finished difference. Result has 131 places, 128 transitions, 333 flow [2021-12-16 03:03:33,227 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=333, PETRI_PLACES=131, PETRI_TRANSITIONS=128} [2021-12-16 03:03:33,227 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2021-12-16 03:03:33,227 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 128 transitions, 333 flow [2021-12-16 03:03:33,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,228 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:33,229 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-16 03:03:33,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:03:33,229 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:03:33,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:33,230 INFO L85 PathProgramCache]: Analyzing trace with hash -815040470, now seen corresponding path program 2 times [2021-12-16 03:03:33,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:33,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497843383] [2021-12-16 03:03:33,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:33,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:33,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:33,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:33,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497843383] [2021-12-16 03:03:33,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497843383] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:33,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:33,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 03:03:33,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173133300] [2021-12-16 03:03:33,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:33,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 03:03:33,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:33,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 03:03:33,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-16 03:03:33,372 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 139 [2021-12-16 03:03:33,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 128 transitions, 333 flow. Second operand has 10 states, 10 states have (on average 85.2) internal successors, (852), 10 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:33,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 139 [2021-12-16 03:03:33,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:33,509 INFO L129 PetriNetUnfolder]: 59/400 cut-off events. [2021-12-16 03:03:33,509 INFO L130 PetriNetUnfolder]: For 99/101 co-relation queries the response was YES. [2021-12-16 03:03:33,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 400 events. 59/400 cut-off events. For 99/101 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1904 event pairs, 4 based on Foata normal form. 4/389 useless extension candidates. Maximal degree in co-relation 500. Up to 71 conditions per place. [2021-12-16 03:03:33,512 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 54 selfloop transitions, 31 changer transitions 0/159 dead transitions. [2021-12-16 03:03:33,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 159 transitions, 606 flow [2021-12-16 03:03:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 03:03:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-16 03:03:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 964 transitions. [2021-12-16 03:03:33,515 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6304774362328319 [2021-12-16 03:03:33,515 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 964 transitions. [2021-12-16 03:03:33,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 964 transitions. [2021-12-16 03:03:33,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:33,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 964 transitions. [2021-12-16 03:03:33,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.63636363636364) internal successors, (964), 11 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,520 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,521 INFO L186 Difference]: Start difference. First operand has 131 places, 128 transitions, 333 flow. Second operand 11 states and 964 transitions. [2021-12-16 03:03:33,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 159 transitions, 606 flow [2021-12-16 03:03:33,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 159 transitions, 600 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-16 03:03:33,528 INFO L242 Difference]: Finished difference. Result has 140 places, 140 transitions, 461 flow [2021-12-16 03:03:33,528 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=461, PETRI_PLACES=140, PETRI_TRANSITIONS=140} [2021-12-16 03:03:33,530 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2021-12-16 03:03:33,532 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 461 flow [2021-12-16 03:03:33,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.2) internal successors, (852), 10 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,533 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:33,533 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-16 03:03:33,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:03:33,534 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:03:33,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:33,535 INFO L85 PathProgramCache]: Analyzing trace with hash -349745785, now seen corresponding path program 1 times [2021-12-16 03:03:33,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:33,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896128311] [2021-12-16 03:03:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:33,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:33,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:33,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896128311] [2021-12-16 03:03:33,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896128311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:33,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:33,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 03:03:33,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693039088] [2021-12-16 03:03:33,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:33,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 03:03:33,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:33,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 03:03:33,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-16 03:03:33,770 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2021-12-16 03:03:33,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 140 transitions, 461 flow. Second operand has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:33,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2021-12-16 03:03:33,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:33,910 INFO L129 PetriNetUnfolder]: 57/381 cut-off events. [2021-12-16 03:03:33,910 INFO L130 PetriNetUnfolder]: For 218/223 co-relation queries the response was YES. [2021-12-16 03:03:33,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 381 events. 57/381 cut-off events. For 218/223 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1665 event pairs, 16 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 649. Up to 151 conditions per place. [2021-12-16 03:03:33,912 INFO L132 encePairwiseOnDemand]: 126/139 looper letters, 58 selfloop transitions, 19 changer transitions 2/149 dead transitions. [2021-12-16 03:03:33,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 149 transitions, 649 flow [2021-12-16 03:03:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 03:03:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-16 03:03:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 923 transitions. [2021-12-16 03:03:33,915 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6036625245258339 [2021-12-16 03:03:33,915 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 923 transitions. [2021-12-16 03:03:33,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 923 transitions. [2021-12-16 03:03:33,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:33,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 923 transitions. [2021-12-16 03:03:33,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.9090909090909) internal successors, (923), 11 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,920 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,920 INFO L186 Difference]: Start difference. First operand has 140 places, 140 transitions, 461 flow. Second operand 11 states and 923 transitions. [2021-12-16 03:03:33,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 149 transitions, 649 flow [2021-12-16 03:03:33,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 149 transitions, 636 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-12-16 03:03:33,924 INFO L242 Difference]: Finished difference. Result has 149 places, 142 transitions, 509 flow [2021-12-16 03:03:33,925 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=509, PETRI_PLACES=149, PETRI_TRANSITIONS=142} [2021-12-16 03:03:33,925 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 23 predicate places. [2021-12-16 03:03:33,925 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 142 transitions, 509 flow [2021-12-16 03:03:33,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:33,926 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:33,926 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-16 03:03:33,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:03:33,926 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:03:33,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:33,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1956691305, now seen corresponding path program 2 times [2021-12-16 03:03:33,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:33,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422699944] [2021-12-16 03:03:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:33,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:34,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:34,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422699944] [2021-12-16 03:03:34,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422699944] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:34,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:34,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 03:03:34,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762204212] [2021-12-16 03:03:34,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:34,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 03:03:34,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 03:03:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 03:03:34,046 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 139 [2021-12-16 03:03:34,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 142 transitions, 509 flow. Second operand has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:34,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 139 [2021-12-16 03:03:34,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:34,165 INFO L129 PetriNetUnfolder]: 33/332 cut-off events. [2021-12-16 03:03:34,165 INFO L130 PetriNetUnfolder]: For 160/168 co-relation queries the response was YES. [2021-12-16 03:03:34,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 332 events. 33/332 cut-off events. For 160/168 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1472 event pairs, 9 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 474. Up to 70 conditions per place. [2021-12-16 03:03:34,166 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 0 selfloop transitions, 0 changer transitions 142/142 dead transitions. [2021-12-16 03:03:34,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 142 transitions, 644 flow [2021-12-16 03:03:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 03:03:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 03:03:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 785 transitions. [2021-12-16 03:03:34,168 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.627498001598721 [2021-12-16 03:03:34,168 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 785 transitions. [2021-12-16 03:03:34,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 785 transitions. [2021-12-16 03:03:34,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:34,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 785 transitions. [2021-12-16 03:03:34,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.22222222222223) internal successors, (785), 9 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,172 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,172 INFO L186 Difference]: Start difference. First operand has 149 places, 142 transitions, 509 flow. Second operand 9 states and 785 transitions. [2021-12-16 03:03:34,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 142 transitions, 644 flow [2021-12-16 03:03:34,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 142 transitions, 615 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-12-16 03:03:34,176 INFO L242 Difference]: Finished difference. Result has 147 places, 0 transitions, 0 flow [2021-12-16 03:03:34,176 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=147, PETRI_TRANSITIONS=0} [2021-12-16 03:03:34,177 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 21 predicate places. [2021-12-16 03:03:34,178 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 0 transitions, 0 flow [2021-12-16 03:03:34,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,180 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-16 03:03:34,180 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-16 03:03:34,180 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-12-16 03:03:34,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:03:34,184 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2021-12-16 03:03:34,185 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-16 03:03:34,185 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 03:03:34,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:03:34 BasicIcfg [2021-12-16 03:03:34,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 03:03:34,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 03:03:34,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 03:03:34,188 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 03:03:34,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:03:31" (3/4) ... [2021-12-16 03:03:34,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 03:03:34,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-12-16 03:03:34,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-12-16 03:03:34,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-16 03:03:34,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-16 03:03:34,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 03:03:34,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 03:03:34,219 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 03:03:34,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 03:03:34,219 INFO L158 Benchmark]: Toolchain (without parser) took 2969.24ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 75.0MB in the beginning and 77.6MB in the end (delta: -2.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2021-12-16 03:03:34,219 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:03:34,220 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.91ms. Allocated memory is still 102.8MB. Free memory was 74.7MB in the beginning and 78.1MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 03:03:34,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.31ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:03:34,220 INFO L158 Benchmark]: Boogie Preprocessor took 36.45ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 74.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 03:03:34,220 INFO L158 Benchmark]: RCFGBuilder took 344.96ms. Allocated memory is still 102.8MB. Free memory was 74.8MB in the beginning and 59.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-16 03:03:34,220 INFO L158 Benchmark]: TraceAbstraction took 2255.48ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 81.8MB in the end (delta: -22.8MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2021-12-16 03:03:34,220 INFO L158 Benchmark]: Witness Printer took 31.19ms. Allocated memory is still 127.9MB. Free memory was 81.8MB in the beginning and 77.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 03:03:34,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.91ms. Allocated memory is still 102.8MB. Free memory was 74.7MB in the beginning and 78.1MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.31ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.45ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 74.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 344.96ms. Allocated memory is still 102.8MB. Free memory was 74.8MB in the beginning and 59.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2255.48ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 81.8MB in the end (delta: -22.8MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Witness Printer took 31.19ms. Allocated memory is still 127.9MB. Free memory was 81.8MB in the beginning and 77.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 152 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 359 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 359 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 512 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 716 IncrementalHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 164 mSDtfsCounter, 716 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=4, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 554 NumberOfCodeBlocks, 554 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 549 ConstructedInterpolants, 0 QuantifiedInterpolants, 1740 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-16 03:03:34,246 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: TRUE