./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0 --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 6459c3a3aa967b53ca30e3b9918903c0b3ea7a6b804c927bd1e7a9e96906dc40 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:38:50,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:38:50,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:38:50,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:38:50,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:38:50,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:38:50,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:38:50,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:38:50,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:38:50,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:38:50,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:38:50,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:38:50,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:38:50,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:38:50,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:38:50,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:38:50,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:38:50,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:38:50,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:38:50,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:38:50,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:38:50,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:38:50,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:38:50,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:38:50,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:38:50,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:38:50,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:38:50,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:38:50,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:38:50,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:38:50,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:38:50,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:38:50,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:38:50,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:38:50,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:38:50,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:38:50,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:38:50,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:38:50,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:38:50,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:38:50,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:38:50,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:38:50,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:38:50,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:38:50,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:38:50,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:38:50,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:38:50,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:38:50,292 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:38:50,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:38:50,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:38:50,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:38:50,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:38:50,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:38:50,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:38:50,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:38:50,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:38:50,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:38:50,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:38:50,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:38:50,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:38:50,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:38:50,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:38:50,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:38:50,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:38:50,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:38:50,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:38:50,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:38:50,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:38:50,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:38:50,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:38:50,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:38:50,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:38:50,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:38:50,304 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6459c3a3aa967b53ca30e3b9918903c0b3ea7a6b804c927bd1e7a9e96906dc40 [2021-11-22 14:38:50,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:38:50,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:38:50,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:38:50,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:38:50,658 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:38:50,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2021-11-22 14:38:50,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/data/183eccb54/cc10c49ac0364b9995f7e10309e0a5d5/FLAG565f72b44 [2021-11-22 14:38:51,353 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:38:51,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2021-11-22 14:38:51,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/data/183eccb54/cc10c49ac0364b9995f7e10309e0a5d5/FLAG565f72b44 [2021-11-22 14:38:51,634 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/data/183eccb54/cc10c49ac0364b9995f7e10309e0a5d5 [2021-11-22 14:38:51,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:38:51,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:38:51,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:51,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:38:51,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:38:51,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:51" (1/1) ... [2021-11-22 14:38:51,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68024abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:51, skipping insertion in model container [2021-11-22 14:38:51,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:51" (1/1) ... [2021-11-22 14:38:51,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:38:51,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:38:51,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] [2021-11-22 14:38:52,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:52,159 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:38:52,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] [2021-11-22 14:38:52,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:52,265 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:38:52,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52 WrapperNode [2021-11-22 14:38:52,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:52,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:52,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:38:52,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:38:52,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,345 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-11-22 14:38:52,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:52,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:38:52,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:38:52,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:38:52,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:38:52,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:38:52,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:38:52,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:38:52,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (1/1) ... [2021-11-22 14:38:52,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:38:52,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:52,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:52,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:38:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:38:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-22 14:38:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:38:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:38:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-22 14:38:52,515 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-22 14:38:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:38:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:38:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:38:52,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:38:52,518 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 14:38:52,692 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:38:52,694 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:38:52,979 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:38:52,992 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:38:52,993 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 14:38:52,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:52 BoogieIcfgContainer [2021-11-22 14:38:52,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:38:53,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:38:53,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:38:53,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:38:53,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:38:51" (1/3) ... [2021-11-22 14:38:53,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54eab60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:53, skipping insertion in model container [2021-11-22 14:38:53,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:52" (2/3) ... [2021-11-22 14:38:53,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54eab60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:53, skipping insertion in model container [2021-11-22 14:38:53,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:52" (3/3) ... [2021-11-22 14:38:53,009 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_38-traces-ex-4-switch_true.i [2021-11-22 14:38:53,018 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 14:38:53,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:38:53,018 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:38:53,019 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 14:38:53,072 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,072 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,072 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,073 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,074 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,074 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,094 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,094 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,095 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,095 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,095 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,095 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,096 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,096 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,097 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,097 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,097 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,098 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,098 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,098 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,099 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,099 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,103 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,105 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,105 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,105 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:38:53,109 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 14:38:53,191 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:38:53,211 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 [2021-11-22 14:38:53,212 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 14:38:53,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 147 flow [2021-11-22 14:38:53,288 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-11-22 14:38:53,289 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-22 14:38:53,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-11-22 14:38:53,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 147 flow [2021-11-22 14:38:53,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2021-11-22 14:38:53,322 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-11-22 14:38:53,323 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-22 14:38:53,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:38:53,324 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] [2021-11-22 14:38:53,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 14:38:53,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1163219958, now seen corresponding path program 1 times [2021-11-22 14:38:53,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:53,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560260375] [2021-11-22 14:38:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:53,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:53,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:53,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:53,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560260375] [2021-11-22 14:38:53,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560260375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:38:53,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:38:53,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:38:53,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484668064] [2021-11-22 14:38:53,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:38:53,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 14:38:53,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:53,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:38:53,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:38:53,871 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 71 [2021-11-22 14:38:53,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2021-11-22 14:38:53,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:38:53,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 71 [2021-11-22 14:38:53,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:38:53,983 INFO L129 PetriNetUnfolder]: 8/101 cut-off events. [2021-11-22 14:38:53,984 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-22 14:38:53,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 101 events. 8/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 197 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 96. Up to 10 conditions per place. [2021-11-22 14:38:53,986 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/70 dead transitions. [2021-11-22 14:38:53,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 183 flow [2021-11-22 14:38:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:38:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-22 14:38:54,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 442 transitions. [2021-11-22 14:38:54,007 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8893360160965795 [2021-11-22 14:38:54,008 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 442 transitions. [2021-11-22 14:38:54,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 442 transitions. [2021-11-22 14:38:54,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:38:54,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 442 transitions. [2021-11-22 14:38:54,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2021-11-22 14:38:54,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-11-22 14:38:54,034 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-11-22 14:38:54,036 INFO L186 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 7 states and 442 transitions. [2021-11-22 14:38:54,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 183 flow [2021-11-22 14:38:54,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-22 14:38:54,047 INFO L242 Difference]: Finished difference. Result has 72 places, 58 transitions, 137 flow [2021-11-22 14:38:54,049 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=137, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2021-11-22 14:38:54,054 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2021-11-22 14:38:54,055 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 137 flow [2021-11-22 14:38:54,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2021-11-22 14:38:54,056 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:38:54,056 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] [2021-11-22 14:38:54,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:38:54,057 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 14:38:54,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:54,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1776305511, now seen corresponding path program 1 times [2021-11-22 14:38:54,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:54,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790621733] [2021-11-22 14:38:54,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:54,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:54,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:54,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790621733] [2021-11-22 14:38:54,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790621733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:38:54,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:38:54,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:38:54,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117728748] [2021-11-22 14:38:54,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:38:54,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:38:54,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:38:54,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:38:54,163 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 71 [2021-11-22 14:38:54,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-22 14:38:54,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:38:54,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 71 [2021-11-22 14:38:54,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:38:54,239 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2021-11-22 14:38:54,239 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-22 14:38:54,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 87 events. 3/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 127 event pairs, 0 based on Foata normal form. 6/93 useless extension candidates. Maximal degree in co-relation 122. Up to 15 conditions per place. [2021-11-22 14:38:54,241 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 9 selfloop transitions, 3 changer transitions 10/61 dead transitions. [2021-11-22 14:38:54,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 61 transitions, 179 flow [2021-11-22 14:38:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:38:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-22 14:38:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2021-11-22 14:38:54,245 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8309859154929577 [2021-11-22 14:38:54,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2021-11-22 14:38:54,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2021-11-22 14:38:54,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:38:54,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2021-11-22 14:38:54,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-11-22 14:38:54,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-11-22 14:38:54,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-11-22 14:38:54,250 INFO L186 Difference]: Start difference. First operand has 72 places, 58 transitions, 137 flow. Second operand 3 states and 177 transitions. [2021-11-22 14:38:54,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 61 transitions, 179 flow [2021-11-22 14:38:54,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 165 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-11-22 14:38:54,254 INFO L242 Difference]: Finished difference. Result has 64 places, 51 transitions, 114 flow [2021-11-22 14:38:54,255 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=64, PETRI_TRANSITIONS=51} [2021-11-22 14:38:54,256 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2021-11-22 14:38:54,257 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 114 flow [2021-11-22 14:38:54,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-22 14:38:54,257 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:38:54,258 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] [2021-11-22 14:38:54,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:38:54,258 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 14:38:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:54,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1466632032, now seen corresponding path program 1 times [2021-11-22 14:38:54,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:54,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254818293] [2021-11-22 14:38:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:54,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:54,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:54,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254818293] [2021-11-22 14:38:54,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254818293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:38:54,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:38:54,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 14:38:54,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988541836] [2021-11-22 14:38:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:38:54,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:38:54,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:54,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:38:54,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:38:54,466 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 71 [2021-11-22 14:38:54,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 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) [2021-11-22 14:38:54,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:38:54,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 71 [2021-11-22 14:38:54,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:38:54,542 INFO L129 PetriNetUnfolder]: 1/51 cut-off events. [2021-11-22 14:38:54,542 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-22 14:38:54,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 51 events. 1/51 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 3/54 useless extension candidates. Maximal degree in co-relation 33. Up to 8 conditions per place. [2021-11-22 14:38:54,543 INFO L132 encePairwiseOnDemand]: 67/71 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2021-11-22 14:38:54,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 144 flow [2021-11-22 14:38:54,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:38:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-22 14:38:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 251 transitions. [2021-11-22 14:38:54,546 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7070422535211267 [2021-11-22 14:38:54,547 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 251 transitions. [2021-11-22 14:38:54,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 251 transitions. [2021-11-22 14:38:54,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:38:54,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 251 transitions. [2021-11-22 14:38:54,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 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) [2021-11-22 14:38:54,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 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) [2021-11-22 14:38:54,552 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 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) [2021-11-22 14:38:54,552 INFO L186 Difference]: Start difference. First operand has 64 places, 51 transitions, 114 flow. Second operand 5 states and 251 transitions. [2021-11-22 14:38:54,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 144 flow [2021-11-22 14:38:54,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-22 14:38:54,554 INFO L242 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2021-11-22 14:38:54,554 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2021-11-22 14:38:54,556 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2021-11-22 14:38:54,556 INFO L470 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2021-11-22 14:38:54,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 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) [2021-11-22 14:38:54,559 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 14:38:54,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-22 14:38:54,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:38:54,564 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-22 14:38:54,567 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-22 14:38:54,567 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:38:54,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:38:54 BasicIcfg [2021-11-22 14:38:54,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:38:54,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:38:54,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:38:54,574 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:38:54,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:52" (3/4) ... [2021-11-22 14:38:54,577 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 14:38:54,584 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-22 14:38:54,589 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-22 14:38:54,589 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-22 14:38:54,590 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 14:38:54,590 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 14:38:54,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:38:54,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:38:54,658 INFO L158 Benchmark]: Toolchain (without parser) took 3016.60ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 68.9MB in the beginning and 75.2MB in the end (delta: -6.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2021-11-22 14:38:54,658 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 58.8MB in the beginning and 58.7MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:38:54,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.66ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 68.4MB in the end (delta: 350.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:38:54,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.35ms. Allocated memory is still 102.8MB. Free memory was 68.4MB in the beginning and 66.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:38:54,660 INFO L158 Benchmark]: Boogie Preprocessor took 54.46ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 65.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:38:54,660 INFO L158 Benchmark]: RCFGBuilder took 593.94ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 54.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:38:54,661 INFO L158 Benchmark]: TraceAbstraction took 1572.12ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 53.3MB in the beginning and 78.3MB in the end (delta: -25.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-22 14:38:54,662 INFO L158 Benchmark]: Witness Printer took 81.77ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 75.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 14:38:54,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 58.8MB in the beginning and 58.7MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.66ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 68.4MB in the end (delta: 350.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.35ms. Allocated memory is still 102.8MB. Free memory was 68.4MB in the beginning and 66.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.46ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 65.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.94ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 54.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1572.12ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 53.3MB in the beginning and 78.3MB in the end (delta: -25.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 81.77ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 75.2MB in the end (delta: 3.1MB). 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: 19]: 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 3 procedures, 87 locations, 2 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: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 24 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=1, InterpolantAutomatonStates: 15, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 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! [2021-11-22 14:38:54,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362a180b-91c4-4e1e-8663-dba7279381dc/bin/uautomizer-w2VwFs6gM0/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