./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/sre-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl/sre-trans.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 b5e528647dae0f58b23f5adaf3d8be49954d083a ................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-04 18:39:20,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-04 18:39:20,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-04 18:39:20,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-04 18:39:20,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-04 18:39:20,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-04 18:39:20,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-04 18:39:20,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-04 18:39:20,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-04 18:39:20,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-04 18:39:20,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-04 18:39:20,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-04 18:39:20,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-04 18:39:20,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-04 18:39:20,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-04 18:39:20,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-04 18:39:20,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-04 18:39:20,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-04 18:39:20,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-04 18:39:20,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-04 18:39:20,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-04 18:39:20,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-04 18:39:20,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-04 18:39:20,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-04 18:39:20,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-04 18:39:20,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-04 18:39:20,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-04 18:39:20,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-04 18:39:20,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-04 18:39:20,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-04 18:39:20,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-04 18:39:20,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-04 18:39:20,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-04 18:39:20,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-04 18:39:20,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-04 18:39:20,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-04 18:39:20,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-04 18:39:20,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-04 18:39:20,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-04 18:39:20,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-04 18:39:20,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-04 18:39:20,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-04 18:39:20,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-04 18:39:20,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-04 18:39:20,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-04 18:39:20,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-04 18:39:20,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-04 18:39:20,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-04 18:39:20,230 INFO L138 SettingsManager]: * Use SBE=true [2021-10-04 18:39:20,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-04 18:39:20,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-04 18:39:20,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-04 18:39:20,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-04 18:39:20,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-04 18:39:20,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-04 18:39:20,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-04 18:39:20,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-04 18:39:20,234 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-04 18:39:20,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-04 18:39:20,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-04 18:39:20,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-04 18:39:20,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-04 18:39:20,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-04 18:39:20,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-04 18:39:20,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:39:20,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-04 18:39:20,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-04 18:39:20,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-04 18:39:20,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-04 18:39:20,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-04 18:39:20,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-04 18:39:20,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-04 18:39:20,248 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5e528647dae0f58b23f5adaf3d8be49954d083a [2021-10-04 18:39:20,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-04 18:39:20,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-04 18:39:20,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-04 18:39:20,736 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-04 18:39:20,736 INFO L275 PluginConnector]: CDTParser initialized [2021-10-04 18:39:20,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/sre-trans.wvr.c [2021-10-04 18:39:20,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aedec3bb/1a520fc227704e2183e92b4043f11081/FLAG70c97a14d [2021-10-04 18:39:21,506 INFO L306 CDTParser]: Found 1 translation units. [2021-10-04 18:39:21,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/sre-trans.wvr.c [2021-10-04 18:39:21,507 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:39:21,508 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:39:21,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aedec3bb/1a520fc227704e2183e92b4043f11081/FLAG70c97a14d [2021-10-04 18:39:21,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aedec3bb/1a520fc227704e2183e92b4043f11081 [2021-10-04 18:39:21,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-04 18:39:21,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-04 18:39:21,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-04 18:39:21,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-04 18:39:21,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-04 18:39:21,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:39:21" (1/1) ... [2021-10-04 18:39:21,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113d22c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:21, skipping insertion in model container [2021-10-04 18:39:21,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:39:21" (1/1) ... [2021-10-04 18:39:21,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-04 18:39:21,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-04 18:39:22,031 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:39:22,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/sre-trans.wvr.c[1221,1234] [2021-10-04 18:39:22,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:39:22,099 INFO L203 MainTranslator]: Completed pre-run [2021-10-04 18:39:22,114 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:39:22,148 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/sre-trans.wvr.c[1221,1234] [2021-10-04 18:39:22,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:39:22,174 INFO L208 MainTranslator]: Completed translation [2021-10-04 18:39:22,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22 WrapperNode [2021-10-04 18:39:22,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-04 18:39:22,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-04 18:39:22,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-04 18:39:22,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-04 18:39:22,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-04 18:39:22,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-04 18:39:22,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-04 18:39:22,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-04 18:39:22,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-04 18:39:22,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-04 18:39:22,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-04 18:39:22,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-04 18:39:22,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (1/1) ... [2021-10-04 18:39:22,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:39:22,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 18:39:22,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-04 18:39:22,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-04 18:39:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-04 18:39:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-04 18:39:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-04 18:39:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-04 18:39:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-04 18:39:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-04 18:39:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-04 18:39:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-04 18:39:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-04 18:39:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-04 18:39:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-04 18:39:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-04 18:39:22,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-04 18:39:22,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-04 18:39:22,929 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-04 18:39:22,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:22 BoogieIcfgContainer [2021-10-04 18:39:22,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-04 18:39:22,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-04 18:39:22,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-04 18:39:22,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-04 18:39:22,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.10 06:39:21" (1/3) ... [2021-10-04 18:39:22,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dab30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:39:22, skipping insertion in model container [2021-10-04 18:39:22,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:22" (2/3) ... [2021-10-04 18:39:22,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dab30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:39:22, skipping insertion in model container [2021-10-04 18:39:22,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:22" (3/3) ... [2021-10-04 18:39:22,948 INFO L111 eAbstractionObserver]: Analyzing ICFG sre-trans.wvr.c [2021-10-04 18:39:22,956 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-04 18:39:22,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-04 18:39:22,956 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-04 18:39:22,957 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-04 18:39:23,015 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,015 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,016 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,029 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,029 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,030 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,030 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,032 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,032 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,034 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,034 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,035 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,037 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,037 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,037 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,041 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,042 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,042 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,051 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,051 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,052 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,057 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,058 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,058 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,059 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:23,077 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-04 18:39:23,156 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-04 18:39:23,170 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-04 18:39:23,170 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-04 18:39:23,199 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-04 18:39:23,234 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 100 transitions, 224 flow [2021-10-04 18:39:23,239 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 100 transitions, 224 flow [2021-10-04 18:39:23,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 100 transitions, 224 flow [2021-10-04 18:39:23,342 INFO L129 PetriNetUnfolder]: 7/97 cut-off events. [2021-10-04 18:39:23,343 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-04 18:39:23,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 97 events. 7/97 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-10-04 18:39:23,355 INFO L116 LiptonReduction]: Number of co-enabled transitions 1728 [2021-10-04 18:39:26,347 INFO L131 LiptonReduction]: Checked pairs total: 1741 [2021-10-04 18:39:26,348 INFO L133 LiptonReduction]: Total number of compositions: 97 [2021-10-04 18:39:26,358 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-10-04 18:39:26,373 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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) [2021-10-04 18:39:26,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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) [2021-10-04 18:39:26,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:26,383 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:26,384 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:26,385 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:26,392 INFO L82 PathProgramCache]: Analyzing trace with hash -208262410, now seen corresponding path program 1 times [2021-10-04 18:39:26,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:26,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202008222] [2021-10-04 18:39:26,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:26,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:26,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:26,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202008222] [2021-10-04 18:39:26,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202008222] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:26,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:26,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:39:26,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074231312] [2021-10-04 18:39:26,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:39:26,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:26,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:39:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:26,912 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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) Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-04 18:39:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:26,998 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2021-10-04 18:39:26,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 18:39:27,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) Word has length 16 [2021-10-04 18:39:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:27,011 INFO L225 Difference]: With dead ends: 65 [2021-10-04 18:39:27,011 INFO L226 Difference]: Without dead ends: 56 [2021-10-04 18:39:27,013 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 70.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-04 18:39:27,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-04 18:39:27,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2021-10-04 18:39:27,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.813953488372093) internal successors, (78), 43 states have internal predecessors, (78), 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) [2021-10-04 18:39:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 78 transitions. [2021-10-04 18:39:27,055 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 78 transitions. Word has length 16 [2021-10-04 18:39:27,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:27,056 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 78 transitions. [2021-10-04 18:39:27,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-04 18:39:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 78 transitions. [2021-10-04 18:39:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:27,058 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:27,058 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:27,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-04 18:39:27,059 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:27,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:27,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1570541764, now seen corresponding path program 2 times [2021-10-04 18:39:27,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:27,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213220345] [2021-10-04 18:39:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:27,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:27,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:27,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:27,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213220345] [2021-10-04 18:39:27,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213220345] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:27,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:27,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 18:39:27,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313688300] [2021-10-04 18:39:27,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 18:39:27,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:27,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 18:39:27,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 18:39:27,267 INFO L87 Difference]: Start difference. First operand 44 states and 78 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-04 18:39:27,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:27,307 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2021-10-04 18:39:27,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-04 18:39:27,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2021-10-04 18:39:27,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:27,310 INFO L225 Difference]: With dead ends: 59 [2021-10-04 18:39:27,310 INFO L226 Difference]: Without dead ends: 38 [2021-10-04 18:39:27,312 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:27,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-04 18:39:27,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-04 18:39:27,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 37 states have internal predecessors, (62), 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) [2021-10-04 18:39:27,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2021-10-04 18:39:27,324 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 16 [2021-10-04 18:39:27,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:27,325 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-04 18:39:27,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-04 18:39:27,325 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2021-10-04 18:39:27,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:27,327 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:27,327 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:27,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-04 18:39:27,328 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:27,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:27,329 INFO L82 PathProgramCache]: Analyzing trace with hash -2047913900, now seen corresponding path program 3 times [2021-10-04 18:39:27,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:27,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994174999] [2021-10-04 18:39:27,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:27,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:27,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:27,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994174999] [2021-10-04 18:39:27,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994174999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:27,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:27,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 18:39:27,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388640067] [2021-10-04 18:39:27,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 18:39:27,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:27,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 18:39:27,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 18:39:27,481 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-04 18:39:27,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:27,510 INFO L93 Difference]: Finished difference Result 37 states and 61 transitions. [2021-10-04 18:39:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-04 18:39:27,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2021-10-04 18:39:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:27,513 INFO L225 Difference]: With dead ends: 37 [2021-10-04 18:39:27,513 INFO L226 Difference]: Without dead ends: 0 [2021-10-04 18:39:27,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-04 18:39:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-04 18:39:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-04 18:39:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-04 18:39:27,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-04 18:39:27,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:27,515 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-04 18:39:27,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-04 18:39:27,516 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-04 18:39:27,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-04 18:39:27,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-04 18:39:27,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-04 18:39:27,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-04 18:39:27,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-04 18:39:27,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-04 18:39:27,525 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-04 18:39:27,525 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-04 18:39:27,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 06:39:27 BasicIcfg [2021-10-04 18:39:27,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-04 18:39:27,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-04 18:39:27,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-04 18:39:27,529 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-04 18:39:27,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:22" (3/4) ... [2021-10-04 18:39:27,533 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-04 18:39:27,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-04 18:39:27,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-04 18:39:27,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-04 18:39:27,547 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-04 18:39:27,547 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-04 18:39:27,547 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 18:39:27,590 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-04 18:39:27,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-04 18:39:27,593 INFO L168 Benchmark]: Toolchain (without parser) took 5737.46 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 32.7 MB in the beginning and 37.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,594 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 23.2 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:39:27,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.31 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 35.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.51 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 34.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,596 INFO L168 Benchmark]: Boogie Preprocessor took 62.23 ms. Allocated memory is still 56.6 MB. Free memory was 34.2 MB in the beginning and 33.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,596 INFO L168 Benchmark]: RCFGBuilder took 624.48 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 34.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,597 INFO L168 Benchmark]: TraceAbstraction took 4590.45 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.2 MB in the beginning and 39.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,598 INFO L168 Benchmark]: Witness Printer took 62.37 ms. Allocated memory is still 69.2 MB. Free memory was 39.7 MB in the beginning and 37.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 23.2 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.31 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 35.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.51 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 34.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.23 ms. Allocated memory is still 56.6 MB. Free memory was 34.2 MB in the beginning and 33.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 624.48 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 34.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4590.45 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.2 MB in the beginning and 39.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Witness Printer took 62.37 ms. Allocated memory is still 69.2 MB. Free memory was 39.7 MB in the beginning and 37.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3108.3ms, 103 PlacesBefore, 30 PlacesAfterwards, 100 TransitionsBefore, 20 TransitionsAfterwards, 1728 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 7 ChoiceCompositions, 97 TotalNumberOfCompositions, 1741 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1741, positive: 1741, positive conditional: 0, positive unconditional: 1741, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1400, positive: 1400, positive conditional: 0, positive unconditional: 1400, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1400, positive: 1400, positive conditional: 0, positive unconditional: 1400, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1741, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1400, unknown conditional: 0, unknown unconditional: 1400] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 49]: 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 7 procedures, 130 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4380.3ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 12.5ms, AutomataDifference: 203.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3202.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 41 SDtfs, 102 SDslu, 37 SDs, 0 SdLazy, 21 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 124.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 39.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.0ms SsaConstructionTime, 253.9ms SatisfiabilityAnalysisTime, 456.3ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-10-04 18:39:27,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...