./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/floating_read-15.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash abe6fcc2bea9781e0ab07417eb8616a5b638529e720de8eddec3568cb8edc6ea --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:11:19,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:11:19,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:11:19,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:11:19,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:11:19,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:11:19,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:11:19,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:11:19,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:11:19,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:11:19,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:11:19,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:11:19,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:11:19,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:11:19,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:11:19,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:11:19,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:11:19,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:11:19,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:11:19,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:11:19,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:11:19,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:11:19,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:11:19,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:11:19,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:11:19,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:11:19,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:11:19,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:11:19,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:11:19,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:11:19,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:11:19,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:11:19,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:11:19,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:11:19,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:11:19,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:11:19,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:11:19,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:11:19,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:11:19,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:11:19,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:11:19,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:11:19,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:11:19,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:11:19,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:11:19,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:11:19,287 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:11:19,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:11:19,287 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:11:19,287 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:11:19,288 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:11:19,288 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:11:19,289 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:11:19,289 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:11:19,289 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:11:19,290 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:11:19,290 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:11:19,290 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:11:19,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:11:19,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:11:19,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:11:19,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:11:19,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:11:19,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:11:19,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:11:19,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:11:19,292 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:11:19,292 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:11:19,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:11:19,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:11:19,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:11:19,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:11:19,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:11:19,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:11:19,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:11:19,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:11:19,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:11:19,296 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:11:19,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:11:19,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:11:19,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:11:19,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:11:19,297 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abe6fcc2bea9781e0ab07417eb8616a5b638529e720de8eddec3568cb8edc6ea [2021-11-12 23:11:19,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:11:19,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:11:19,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:11:19,709 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:11:19,709 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:11:19,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/pthread-deagle/floating_read-15.i [2021-11-12 23:11:19,782 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/data/5268ca842/82fc6bfcbce741c68ab9107b9c4a5d4d/FLAG875582bf4 [2021-11-12 23:11:20,349 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:11:20,349 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/sv-benchmarks/c/pthread-deagle/floating_read-15.i [2021-11-12 23:11:20,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/data/5268ca842/82fc6bfcbce741c68ab9107b9c4a5d4d/FLAG875582bf4 [2021-11-12 23:11:20,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/data/5268ca842/82fc6bfcbce741c68ab9107b9c4a5d4d [2021-11-12 23:11:20,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:11:20,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:11:20,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:11:20,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:11:20,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:11:20,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:11:20" (1/1) ... [2021-11-12 23:11:20,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d6fc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:20, skipping insertion in model container [2021-11-12 23:11:20,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:11:20" (1/1) ... [2021-11-12 23:11:20,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:11:20,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:11:21,137 WARN L1529 CHandler]: Possible shadowing of function thread [2021-11-12 23:11:21,146 WARN L228 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_82646453-dc12-4a42-b661-393cc54a0ba4/sv-benchmarks/c/pthread-deagle/floating_read-15.i[31197,31210] [2021-11-12 23:11:21,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:11:21,158 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:11:21,229 WARN L1529 CHandler]: Possible shadowing of function thread [2021-11-12 23:11:21,239 WARN L228 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_82646453-dc12-4a42-b661-393cc54a0ba4/sv-benchmarks/c/pthread-deagle/floating_read-15.i[31197,31210] [2021-11-12 23:11:21,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:11:21,287 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:11:21,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21 WrapperNode [2021-11-12 23:11:21,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:11:21,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:11:21,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:11:21,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:11:21,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:11:21,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:11:21,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:11:21,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:11:21,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:11:21,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:11:21,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:11:21,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:11:21,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (1/1) ... [2021-11-12 23:11:21,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:11:21,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:21,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:11:21,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:11:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:11:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:11:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 23:11:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:11:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:11:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:11:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-11-12 23:11:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-11-12 23:11:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 23:11:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:11:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:11:21,513 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:11:21,875 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:11:21,876 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 23:11:21,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:11:21 BoogieIcfgContainer [2021-11-12 23:11:21,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:11:21,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:11:21,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:11:21,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:11:21,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:11:20" (1/3) ... [2021-11-12 23:11:21,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424cab80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:11:21, skipping insertion in model container [2021-11-12 23:11:21,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:21" (2/3) ... [2021-11-12 23:11:21,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424cab80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:11:21, skipping insertion in model container [2021-11-12 23:11:21,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:11:21" (3/3) ... [2021-11-12 23:11:21,887 INFO L111 eAbstractionObserver]: Analyzing ICFG floating_read-15.i [2021-11-12 23:11:21,893 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:11:21,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:11:21,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:11:21,894 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:11:21,921 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,921 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,921 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,921 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,922 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,922 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,922 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,922 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,923 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,923 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,923 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,925 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,925 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,925 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,925 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,929 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,929 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,930 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,930 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,930 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:21,934 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-12 23:11:21,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:21,988 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=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 [2021-11-12 23:11:21,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:22,002 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:22,016 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 59 transitions, 126 flow [2021-11-12 23:11:22,020 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 59 transitions, 126 flow [2021-11-12 23:11:22,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions, 126 flow [2021-11-12 23:11:22,062 INFO L129 PetriNetUnfolder]: 7/81 cut-off events. [2021-11-12 23:11:22,062 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-12 23:11:22,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 81 events. 7/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2021-11-12 23:11:22,067 INFO L116 LiptonReduction]: Number of co-enabled transitions 280 [2021-11-12 23:11:24,544 INFO L131 LiptonReduction]: Checked pairs total: 352 [2021-11-12 23:11:24,545 INFO L133 LiptonReduction]: Total number of compositions: 52 [2021-11-12 23:11:24,553 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 12 transitions, 32 flow [2021-11-12 23:11:24,563 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-11-12 23:11:24,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-11-12 23:11:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:24,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:24,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:24,570 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:24,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:24,576 INFO L85 PathProgramCache]: Analyzing trace with hash 7338, now seen corresponding path program 1 times [2021-11-12 23:11:24,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:24,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109873224] [2021-11-12 23:11:24,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:24,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:24,751 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:24,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109873224] [2021-11-12 23:11:24,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109873224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:24,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:24,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:24,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150806841] [2021-11-12 23:11:24,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:24,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:24,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:24,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:24,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:24,784 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:24,818 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-11-12 23:11:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:24,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:24,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:24,828 INFO L225 Difference]: With dead ends: 12 [2021-11-12 23:11:24,828 INFO L226 Difference]: Without dead ends: 12 [2021-11-12 23:11:24,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:24,834 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.59ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:24,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.61ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 19.59ms Time] [2021-11-12 23:11:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-12 23:11:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-12 23:11:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2021-11-12 23:11:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-11-12 23:11:24,872 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 2 [2021-11-12 23:11:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:24,873 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-11-12 23:11:24,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:24,874 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-12 23:11:24,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:11:24,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:24,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:11:24,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:11:24,883 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:24,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:24,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2021-11-12 23:11:24,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:24,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204681576] [2021-11-12 23:11:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:24,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:24,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:24,997 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:24,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204681576] [2021-11-12 23:11:24,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204681576] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:24,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312958821] [2021-11-12 23:11:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:24,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:24,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:25,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:25,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:11:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:25,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:11:25,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:25,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:25,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312958821] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:25,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [882146049] [2021-11-12 23:11:25,165 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:25,176 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:25,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2021-11-12 23:11:25,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139122414] [2021-11-12 23:11:25,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:25,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:11:25,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:25,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:11:25,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:11:25,180 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-11-12 23:11:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:25,212 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-12 23:11:25,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:11:25,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 6 [2021-11-12 23:11:25,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:25,213 INFO L225 Difference]: With dead ends: 11 [2021-11-12 23:11:25,213 INFO L226 Difference]: Without dead ends: 11 [2021-11-12 23:11:25,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:11:25,216 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.31ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:25,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 13 Unknown, 0 Unchecked, 0.31ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 13.68ms Time] [2021-11-12 23:11:25,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-12 23:11:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-12 23:11:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-11-12 23:11:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-12 23:11:25,220 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2021-11-12 23:11:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:25,221 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-12 23:11:25,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-11-12 23:11:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-12 23:11:25,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:11:25,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:25,222 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-12 23:11:25,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:25,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:25,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:25,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2021-11-12 23:11:25,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:25,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320259862] [2021-11-12 23:11:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:25,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:25,483 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:25,548 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:25,548 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:25,549 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:25,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:25,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:11:25,554 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-12 23:11:25,556 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:25,556 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-12 23:11:25,574 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,574 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,575 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,575 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,575 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,576 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,576 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,576 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,577 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,577 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,577 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,577 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,577 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,578 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,578 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,578 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,578 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,579 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,584 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,585 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,585 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,585 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,585 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,586 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,586 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,586 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,586 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,586 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,587 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,587 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,587 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,587 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,587 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,588 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,588 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,588 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,588 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,588 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,589 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,596 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,597 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,597 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,598 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,598 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,599 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,600 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,600 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,600 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:25,604 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-12 23:11:25,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:25,608 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=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 [2021-11-12 23:11:25,611 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:25,613 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:25,614 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 66 transitions, 150 flow [2021-11-12 23:11:25,615 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 66 transitions, 150 flow [2021-11-12 23:11:25,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 150 flow [2021-11-12 23:11:25,667 INFO L129 PetriNetUnfolder]: 13/135 cut-off events. [2021-11-12 23:11:25,667 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-12 23:11:25,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 135 events. 13/135 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 8 conditions per place. [2021-11-12 23:11:25,673 INFO L116 LiptonReduction]: Number of co-enabled transitions 720 [2021-11-12 23:11:27,785 INFO L131 LiptonReduction]: Checked pairs total: 917 [2021-11-12 23:11:27,785 INFO L133 LiptonReduction]: Total number of compositions: 54 [2021-11-12 23:11:27,787 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 17 transitions, 52 flow [2021-11-12 23:11:27,793 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 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) [2021-11-12 23:11:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 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) [2021-11-12 23:11:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:27,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:27,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:27,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:27,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:27,805 INFO L85 PathProgramCache]: Analyzing trace with hash 11412, now seen corresponding path program 1 times [2021-11-12 23:11:27,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:27,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116330089] [2021-11-12 23:11:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:27,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:27,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:27,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116330089] [2021-11-12 23:11:27,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116330089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:27,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:27,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:27,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829530448] [2021-11-12 23:11:27,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:27,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:27,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:27,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:27,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:27,854 INFO L87 Difference]: Start difference. First operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:27,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:27,877 INFO L93 Difference]: Finished difference Result 35 states and 57 transitions. [2021-11-12 23:11:27,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:27,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:27,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:27,880 INFO L225 Difference]: With dead ends: 35 [2021-11-12 23:11:27,880 INFO L226 Difference]: Without dead ends: 35 [2021-11-12 23:11:27,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:27,887 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:27,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.34ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 16.78ms Time] [2021-11-12 23:11:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-12 23:11:27,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-12 23:11:27,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.78125) internal successors, (57), 34 states have internal predecessors, (57), 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) [2021-11-12 23:11:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 57 transitions. [2021-11-12 23:11:27,897 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 57 transitions. Word has length 2 [2021-11-12 23:11:27,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:27,898 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 57 transitions. [2021-11-12 23:11:27,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:27,898 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2021-11-12 23:11:27,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:11:27,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:27,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:27,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:11:27,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash 614783609, now seen corresponding path program 1 times [2021-11-12 23:11:27,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:27,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775724202] [2021-11-12 23:11:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:27,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:27,992 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:27,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775724202] [2021-11-12 23:11:27,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775724202] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:27,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112837135] [2021-11-12 23:11:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:27,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:27,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:27,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:27,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:11:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:28,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:11:28,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:28,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:28,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112837135] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:28,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1598713575] [2021-11-12 23:11:28,168 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:28,169 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:28,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 7 [2021-11-12 23:11:28,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481173523] [2021-11-12 23:11:28,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:28,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:11:28,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:28,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:11:28,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:11:28,171 INFO L87 Difference]: Start difference. First operand 35 states and 57 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-11-12 23:11:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:28,254 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2021-11-12 23:11:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:11:28,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 7 [2021-11-12 23:11:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:28,256 INFO L225 Difference]: With dead ends: 36 [2021-11-12 23:11:28,256 INFO L226 Difference]: Without dead ends: 36 [2021-11-12 23:11:28,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:11:28,258 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 45 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:28,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 7 Invalid, 42 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [18 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 34.40ms Time] [2021-11-12 23:11:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-12 23:11:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2021-11-12 23:11:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.7) internal successors, (51), 30 states have internal predecessors, (51), 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) [2021-11-12 23:11:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2021-11-12 23:11:28,267 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 7 [2021-11-12 23:11:28,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:28,267 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2021-11-12 23:11:28,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-11-12 23:11:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2021-11-12 23:11:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:11:28,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:28,269 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2021-11-12 23:11:28,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:28,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:28,478 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:28,478 INFO L85 PathProgramCache]: Analyzing trace with hash 172180620, now seen corresponding path program 1 times [2021-11-12 23:11:28,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:28,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772508760] [2021-11-12 23:11:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:28,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:28,531 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:28,552 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:28,552 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:28,552 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:28,552 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:28,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 23:11:28,553 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-12 23:11:28,553 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:28,553 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-12 23:11:28,560 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,561 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,561 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,561 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,561 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,563 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,564 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,566 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,569 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,569 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,569 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,569 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,570 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,570 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,570 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,570 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,570 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,570 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,571 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,571 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:28,572 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-12 23:11:28,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:28,574 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=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 [2021-11-12 23:11:28,574 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:28,576 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:28,576 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 73 transitions, 176 flow [2021-11-12 23:11:28,576 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 73 transitions, 176 flow [2021-11-12 23:11:28,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 176 flow [2021-11-12 23:11:28,612 INFO L129 PetriNetUnfolder]: 24/222 cut-off events. [2021-11-12 23:11:28,612 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-11-12 23:11:28,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 222 events. 24/222 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 505 event pairs, 1 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 143. Up to 16 conditions per place. [2021-11-12 23:11:28,617 INFO L116 LiptonReduction]: Number of co-enabled transitions 1200 [2021-11-12 23:11:30,452 INFO L131 LiptonReduction]: Checked pairs total: 1580 [2021-11-12 23:11:30,453 INFO L133 LiptonReduction]: Total number of compositions: 58 [2021-11-12 23:11:30,454 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions, 70 flow [2021-11-12 23:11:30,472 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 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) [2021-11-12 23:11:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 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) [2021-11-12 23:11:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:30,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:30,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:30,475 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash 15819, now seen corresponding path program 1 times [2021-11-12 23:11:30,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:30,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116685091] [2021-11-12 23:11:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:30,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:30,510 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:30,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116685091] [2021-11-12 23:11:30,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116685091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:30,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:30,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:30,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672503407] [2021-11-12 23:11:30,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:30,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:30,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:30,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:30,513 INFO L87 Difference]: Start difference. First operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:30,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:30,542 INFO L93 Difference]: Finished difference Result 81 states and 170 transitions. [2021-11-12 23:11:30,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:30,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:30,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:30,546 INFO L225 Difference]: With dead ends: 81 [2021-11-12 23:11:30,546 INFO L226 Difference]: Without dead ends: 81 [2021-11-12 23:11:30,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:30,547 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:30,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.29ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 22.55ms Time] [2021-11-12 23:11:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-12 23:11:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-11-12 23:11:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 77 states have (on average 2.207792207792208) internal successors, (170), 80 states have internal predecessors, (170), 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) [2021-11-12 23:11:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 170 transitions. [2021-11-12 23:11:30,562 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 170 transitions. Word has length 2 [2021-11-12 23:11:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:30,562 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 170 transitions. [2021-11-12 23:11:30,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:30,563 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 170 transitions. [2021-11-12 23:11:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:11:30,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:30,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:11:30,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-12 23:11:30,566 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:30,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1743099183, now seen corresponding path program 1 times [2021-11-12 23:11:30,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:30,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379539067] [2021-11-12 23:11:30,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:30,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:11:30,610 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:30,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379539067] [2021-11-12 23:11:30,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379539067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:30,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:30,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:30,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856650477] [2021-11-12 23:11:30,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:30,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:30,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:30,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:30,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:30,612 INFO L87 Difference]: Start difference. First operand 81 states and 170 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:30,639 INFO L93 Difference]: Finished difference Result 78 states and 161 transitions. [2021-11-12 23:11:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:30,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-12 23:11:30,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:30,641 INFO L225 Difference]: With dead ends: 78 [2021-11-12 23:11:30,644 INFO L226 Difference]: Without dead ends: 78 [2021-11-12 23:11:30,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:30,645 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:30,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.26ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 18.15ms Time] [2021-11-12 23:11:30,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-12 23:11:30,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-12 23:11:30,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 2.175675675675676) internal successors, (161), 77 states have internal predecessors, (161), 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) [2021-11-12 23:11:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 161 transitions. [2021-11-12 23:11:30,658 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 161 transitions. Word has length 6 [2021-11-12 23:11:30,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:30,658 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 161 transitions. [2021-11-12 23:11:30,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:30,658 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 161 transitions. [2021-11-12 23:11:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:11:30,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:30,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:30,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-12 23:11:30,659 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:30,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1796427351, now seen corresponding path program 1 times [2021-11-12 23:11:30,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:30,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775487596] [2021-11-12 23:11:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:30,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:30,692 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:30,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775487596] [2021-11-12 23:11:30,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775487596] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:30,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748523271] [2021-11-12 23:11:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:30,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:30,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:30,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:30,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:11:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:30,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:11:30,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:30,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:30,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748523271] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:30,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [962943282] [2021-11-12 23:11:30,845 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:30,846 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:30,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-12 23:11:30,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007474937] [2021-11-12 23:11:30,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:30,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:11:30,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:30,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:11:30,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:11:30,849 INFO L87 Difference]: Start difference. First operand 78 states and 161 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:30,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:30,993 INFO L93 Difference]: Finished difference Result 95 states and 180 transitions. [2021-11-12 23:11:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:11:30,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 7 [2021-11-12 23:11:30,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:30,999 INFO L225 Difference]: With dead ends: 95 [2021-11-12 23:11:30,999 INFO L226 Difference]: Without dead ends: 95 [2021-11-12 23:11:31,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:11:31,001 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 73 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.48ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.83ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:31,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 8 Invalid, 66 Unknown, 0 Unchecked, 1.48ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 80.83ms Time] [2021-11-12 23:11:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-12 23:11:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 86. [2021-11-12 23:11:31,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 2.0357142857142856) internal successors, (171), 85 states have internal predecessors, (171), 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) [2021-11-12 23:11:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 171 transitions. [2021-11-12 23:11:31,013 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 171 transitions. Word has length 7 [2021-11-12 23:11:31,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:31,013 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 171 transitions. [2021-11-12 23:11:31,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 171 transitions. [2021-11-12 23:11:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:11:31,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:31,015 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:31,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:31,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-12 23:11:31,235 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:31,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1356801213, now seen corresponding path program 1 times [2021-11-12 23:11:31,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:31,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955995466] [2021-11-12 23:11:31,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:31,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:31,304 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:31,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955995466] [2021-11-12 23:11:31,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955995466] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:31,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899076770] [2021-11-12 23:11:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:31,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:31,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:31,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:31,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:11:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:31,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:11:31,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:31,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:31,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899076770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:31,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2023891895] [2021-11-12 23:11:31,558 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:31,559 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:31,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-12 23:11:31,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801885339] [2021-11-12 23:11:31,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:31,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:11:31,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:31,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:11:31,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:11:31,560 INFO L87 Difference]: Start difference. First operand 86 states and 171 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:31,704 INFO L93 Difference]: Finished difference Result 92 states and 174 transitions. [2021-11-12 23:11:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:11:31,704 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 15 [2021-11-12 23:11:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:31,706 INFO L225 Difference]: With dead ends: 92 [2021-11-12 23:11:31,706 INFO L226 Difference]: Without dead ends: 92 [2021-11-12 23:11:31,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:11:31,707 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 112 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.31ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.90ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:31,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 14 Invalid, 91 Unknown, 0 Unchecked, 1.31ms Time], IncrementalHoareTripleChecker [29 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 62.90ms Time] [2021-11-12 23:11:31,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-12 23:11:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 67. [2021-11-12 23:11:31,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 2.106060606060606) internal successors, (139), 66 states have internal predecessors, (139), 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) [2021-11-12 23:11:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 139 transitions. [2021-11-12 23:11:31,716 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 139 transitions. Word has length 15 [2021-11-12 23:11:31,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:31,716 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 139 transitions. [2021-11-12 23:11:31,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:31,717 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 139 transitions. [2021-11-12 23:11:31,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:11:31,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:31,718 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2021-11-12 23:11:31,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:31,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:31,934 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:31,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:31,935 INFO L85 PathProgramCache]: Analyzing trace with hash 344461654, now seen corresponding path program 1 times [2021-11-12 23:11:31,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:31,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281365935] [2021-11-12 23:11:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:31,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:31,949 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:31,979 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:31,980 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:31,980 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:31,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:31,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-12 23:11:31,981 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 23:11:31,981 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:31,981 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-12 23:11:31,990 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,990 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,990 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,991 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,991 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,991 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,991 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,991 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,992 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,992 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,992 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,992 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,992 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,992 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,993 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,993 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,994 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,994 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,994 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,994 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,994 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,995 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,995 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,995 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,995 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,995 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,996 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,996 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,996 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,996 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,996 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,996 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,997 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,997 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,997 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,997 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,997 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,998 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,998 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,998 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,998 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,998 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,999 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,999 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,999 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,999 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,999 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:31,999 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,000 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,000 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,000 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,000 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,000 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,001 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,001 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,001 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,001 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,001 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,002 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,002 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,002 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,003 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,003 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,003 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,003 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,003 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,003 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,004 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,004 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,004 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,005 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,005 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,005 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,005 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,006 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,006 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,006 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,007 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,007 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,007 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,008 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,008 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,008 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,008 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,009 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,010 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,010 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:32,011 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-12 23:11:32,013 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:32,013 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=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 [2021-11-12 23:11:32,014 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:32,015 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:32,015 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 204 flow [2021-11-12 23:11:32,016 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 204 flow [2021-11-12 23:11:32,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 204 flow [2021-11-12 23:11:32,082 INFO L129 PetriNetUnfolder]: 47/377 cut-off events. [2021-11-12 23:11:32,082 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-11-12 23:11:32,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 377 events. 47/377 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1190 event pairs, 6 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 242. Up to 32 conditions per place. [2021-11-12 23:11:32,093 INFO L116 LiptonReduction]: Number of co-enabled transitions 1760 [2021-11-12 23:11:33,922 INFO L131 LiptonReduction]: Checked pairs total: 2638 [2021-11-12 23:11:33,922 INFO L133 LiptonReduction]: Total number of compositions: 62 [2021-11-12 23:11:33,923 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 90 flow [2021-11-12 23:11:33,933 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 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) [2021-11-12 23:11:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 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) [2021-11-12 23:11:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:33,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:33,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:33,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:33,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:33,934 INFO L85 PathProgramCache]: Analyzing trace with hash 20583, now seen corresponding path program 1 times [2021-11-12 23:11:33,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:33,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117740977] [2021-11-12 23:11:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:33,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:33,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:33,948 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:33,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117740977] [2021-11-12 23:11:33,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117740977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:33,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:33,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:33,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523640699] [2021-11-12 23:11:33,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:33,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:33,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:33,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:33,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:33,950 INFO L87 Difference]: Start difference. First operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:33,971 INFO L93 Difference]: Finished difference Result 169 states and 430 transitions. [2021-11-12 23:11:33,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:33,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:33,977 INFO L225 Difference]: With dead ends: 169 [2021-11-12 23:11:33,977 INFO L226 Difference]: Without dead ends: 169 [2021-11-12 23:11:33,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:33,978 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:33,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.22ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 15.89ms Time] [2021-11-12 23:11:33,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-12 23:11:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-12 23:11:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 2.6219512195121952) internal successors, (430), 168 states have internal predecessors, (430), 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) [2021-11-12 23:11:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 430 transitions. [2021-11-12 23:11:33,991 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 430 transitions. Word has length 2 [2021-11-12 23:11:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:33,992 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 430 transitions. [2021-11-12 23:11:33,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:33,992 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 430 transitions. [2021-11-12 23:11:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:11:33,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:33,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:11:33,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-12 23:11:33,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:33,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:33,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1854953524, now seen corresponding path program 1 times [2021-11-12 23:11:33,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:33,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124664222] [2021-11-12 23:11:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:33,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:11:34,010 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:34,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124664222] [2021-11-12 23:11:34,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124664222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:34,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:34,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:34,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30956784] [2021-11-12 23:11:34,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:34,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:34,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:34,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:34,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:34,013 INFO L87 Difference]: Start difference. First operand 169 states and 430 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:34,031 INFO L93 Difference]: Finished difference Result 165 states and 416 transitions. [2021-11-12 23:11:34,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:34,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-12 23:11:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:34,034 INFO L225 Difference]: With dead ends: 165 [2021-11-12 23:11:34,034 INFO L226 Difference]: Without dead ends: 165 [2021-11-12 23:11:34,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:34,035 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.59ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:34,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.21ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 15.59ms Time] [2021-11-12 23:11:34,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-12 23:11:34,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-12 23:11:34,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 2.6) internal successors, (416), 164 states have internal predecessors, (416), 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) [2021-11-12 23:11:34,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 416 transitions. [2021-11-12 23:11:34,045 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 416 transitions. Word has length 6 [2021-11-12 23:11:34,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:34,046 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 416 transitions. [2021-11-12 23:11:34,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 416 transitions. [2021-11-12 23:11:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:11:34,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:34,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:34,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-12 23:11:34,047 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:34,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1671537524, now seen corresponding path program 1 times [2021-11-12 23:11:34,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:34,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883935025] [2021-11-12 23:11:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:34,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:34,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:34,070 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:34,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883935025] [2021-11-12 23:11:34,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883935025] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:34,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482853970] [2021-11-12 23:11:34,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:34,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:34,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:34,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:34,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:11:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:34,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:11:34,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:34,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:34,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:34,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482853970] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:34,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [119958047] [2021-11-12 23:11:34,212 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:34,213 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:34,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-12 23:11:34,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607663761] [2021-11-12 23:11:34,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:34,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:11:34,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:34,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:11:34,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:11:34,214 INFO L87 Difference]: Start difference. First operand 165 states and 416 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:34,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:34,323 INFO L93 Difference]: Finished difference Result 220 states and 511 transitions. [2021-11-12 23:11:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:11:34,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 7 [2021-11-12 23:11:34,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:34,341 INFO L225 Difference]: With dead ends: 220 [2021-11-12 23:11:34,341 INFO L226 Difference]: Without dead ends: 220 [2021-11-12 23:11:34,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:11:34,342 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 78 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:34,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 9 Invalid, 77 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [22 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 52.98ms Time] [2021-11-12 23:11:34,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-12 23:11:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 196. [2021-11-12 23:11:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 193 states have (on average 2.461139896373057) internal successors, (475), 195 states have internal predecessors, (475), 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) [2021-11-12 23:11:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 475 transitions. [2021-11-12 23:11:34,353 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 475 transitions. Word has length 7 [2021-11-12 23:11:34,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:34,353 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 475 transitions. [2021-11-12 23:11:34,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:34,354 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 475 transitions. [2021-11-12 23:11:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:11:34,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:34,355 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:34,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:34,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-12 23:11:34,578 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:34,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:34,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1015369778, now seen corresponding path program 1 times [2021-11-12 23:11:34,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:34,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000786134] [2021-11-12 23:11:34,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:34,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:34,619 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:34,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000786134] [2021-11-12 23:11:34,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000786134] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:34,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677803770] [2021-11-12 23:11:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:34,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:34,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:34,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:34,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:11:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:34,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:11:34,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:34,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:34,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677803770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:34,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [420244418] [2021-11-12 23:11:34,823 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:34,824 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:34,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-12 23:11:34,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170168785] [2021-11-12 23:11:34,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:34,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:11:34,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:34,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:11:34,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:11:34,826 INFO L87 Difference]: Start difference. First operand 196 states and 475 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:34,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:34,991 INFO L93 Difference]: Finished difference Result 216 states and 499 transitions. [2021-11-12 23:11:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:11:34,992 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 15 [2021-11-12 23:11:34,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:34,994 INFO L225 Difference]: With dead ends: 216 [2021-11-12 23:11:34,994 INFO L226 Difference]: Without dead ends: 216 [2021-11-12 23:11:34,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:11:34,996 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 165 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.20ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:34,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 14 Invalid, 108 Unknown, 0 Unchecked, 1.20ms Time], IncrementalHoareTripleChecker [42 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 74.25ms Time] [2021-11-12 23:11:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-12 23:11:35,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 139. [2021-11-12 23:11:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 2.5434782608695654) internal successors, (351), 138 states have internal predecessors, (351), 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) [2021-11-12 23:11:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 351 transitions. [2021-11-12 23:11:35,004 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 351 transitions. Word has length 15 [2021-11-12 23:11:35,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:35,004 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 351 transitions. [2021-11-12 23:11:35,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:35,005 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 351 transitions. [2021-11-12 23:11:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 23:11:35,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:35,006 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:35,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:35,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-12 23:11:35,222 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:35,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:35,222 INFO L85 PathProgramCache]: Analyzing trace with hash 885254433, now seen corresponding path program 1 times [2021-11-12 23:11:35,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:35,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472076646] [2021-11-12 23:11:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:35,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:35,232 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:35,251 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:35,252 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:35,252 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:35,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:35,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-12 23:11:35,253 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 23:11:35,253 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:35,253 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-12 23:11:35,267 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,268 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,268 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,268 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,268 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,268 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,268 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,268 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,269 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,269 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,269 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,269 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,269 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,269 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,270 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,270 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,270 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,270 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,270 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,270 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,271 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,271 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,271 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,271 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,271 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,271 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,272 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,273 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,274 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,274 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,274 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,274 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,274 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,274 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,275 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,275 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,275 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,275 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,275 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,275 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,276 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,276 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,276 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,276 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,276 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,276 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,277 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,277 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,277 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,277 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,277 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,277 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,277 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,278 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,278 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,278 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,278 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,278 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,279 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,279 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,279 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,279 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,279 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,279 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,280 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,280 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,280 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,280 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,281 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,281 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,281 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,281 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,281 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,281 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,281 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,282 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,282 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,282 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,282 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,282 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,283 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,283 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,283 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,283 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,283 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,283 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,284 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,284 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,284 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,284 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,284 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,284 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,284 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,285 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,285 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,285 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,285 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,285 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,285 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,286 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,286 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,286 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,286 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,287 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,287 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,287 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,287 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,288 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,288 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,288 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,288 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,289 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,289 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,289 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,289 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,289 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,290 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,290 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,290 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,290 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,291 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,291 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,291 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,291 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,292 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:35,293 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-11-12 23:11:35,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:35,296 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=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 [2021-11-12 23:11:35,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:35,299 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:35,300 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 234 flow [2021-11-12 23:11:35,300 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 234 flow [2021-11-12 23:11:35,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 234 flow [2021-11-12 23:11:35,413 INFO L129 PetriNetUnfolder]: 98/672 cut-off events. [2021-11-12 23:11:35,413 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-11-12 23:11:35,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 672 events. 98/672 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2784 event pairs, 23 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 422. Up to 80 conditions per place. [2021-11-12 23:11:35,433 INFO L116 LiptonReduction]: Number of co-enabled transitions 2400 [2021-11-12 23:11:37,390 INFO L131 LiptonReduction]: Checked pairs total: 3089 [2021-11-12 23:11:37,390 INFO L133 LiptonReduction]: Total number of compositions: 66 [2021-11-12 23:11:37,391 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 112 flow [2021-11-12 23:11:37,411 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 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) [2021-11-12 23:11:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 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) [2021-11-12 23:11:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:37,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:37,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:37,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:37,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:37,414 INFO L85 PathProgramCache]: Analyzing trace with hash 25706, now seen corresponding path program 1 times [2021-11-12 23:11:37,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:37,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056346412] [2021-11-12 23:11:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:37,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:37,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:37,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056346412] [2021-11-12 23:11:37,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056346412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:37,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:37,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:37,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854288791] [2021-11-12 23:11:37,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:37,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:37,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:37,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:37,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:37,432 INFO L87 Difference]: Start difference. First operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:37,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:37,458 INFO L93 Difference]: Finished difference Result 340 states and 1018 transitions. [2021-11-12 23:11:37,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:37,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:37,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:37,462 INFO L225 Difference]: With dead ends: 340 [2021-11-12 23:11:37,462 INFO L226 Difference]: Without dead ends: 340 [2021-11-12 23:11:37,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:37,463 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:37,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.32ms Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 18.84ms Time] [2021-11-12 23:11:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-12 23:11:37,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2021-11-12 23:11:37,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 334 states have (on average 3.0479041916167664) internal successors, (1018), 339 states have internal predecessors, (1018), 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) [2021-11-12 23:11:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 1018 transitions. [2021-11-12 23:11:37,479 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 1018 transitions. Word has length 2 [2021-11-12 23:11:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:37,479 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 1018 transitions. [2021-11-12 23:11:37,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 1018 transitions. [2021-11-12 23:11:37,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:11:37,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:37,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:37,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-12 23:11:37,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1895477050, now seen corresponding path program 1 times [2021-11-12 23:11:37,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:37,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132383391] [2021-11-12 23:11:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:37,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:37,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:37,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132383391] [2021-11-12 23:11:37,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132383391] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:37,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499619327] [2021-11-12 23:11:37,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:37,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:37,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:37,506 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:37,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:11:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:37,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:11:37,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:37,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:37,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499619327] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:37,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [553974721] [2021-11-12 23:11:37,647 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:37,647 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:37,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-12 23:11:37,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298294496] [2021-11-12 23:11:37,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:37,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:11:37,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:37,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:11:37,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:11:37,649 INFO L87 Difference]: Start difference. First operand 340 states and 1018 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:37,779 INFO L93 Difference]: Finished difference Result 477 states and 1327 transitions. [2021-11-12 23:11:37,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:11:37,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 7 [2021-11-12 23:11:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:37,784 INFO L225 Difference]: With dead ends: 477 [2021-11-12 23:11:37,785 INFO L226 Difference]: Without dead ends: 477 [2021-11-12 23:11:37,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:11:37,786 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 83 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.41ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:37,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [21 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 67.41ms Time] [2021-11-12 23:11:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-12 23:11:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 422. [2021-11-12 23:11:37,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 418 states have (on average 2.911483253588517) internal successors, (1217), 421 states have internal predecessors, (1217), 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) [2021-11-12 23:11:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1217 transitions. [2021-11-12 23:11:37,806 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1217 transitions. Word has length 7 [2021-11-12 23:11:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:37,807 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 1217 transitions. [2021-11-12 23:11:37,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1217 transitions. [2021-11-12 23:11:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:11:37,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:37,808 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:37,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:38,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-12 23:11:38,022 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:38,023 INFO L85 PathProgramCache]: Analyzing trace with hash 69739715, now seen corresponding path program 1 times [2021-11-12 23:11:38,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:38,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747481751] [2021-11-12 23:11:38,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:38,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:38,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:38,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747481751] [2021-11-12 23:11:38,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747481751] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:38,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141534128] [2021-11-12 23:11:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:38,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:38,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:38,084 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:38,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-12 23:11:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:38,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:11:38,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:38,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:38,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141534128] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:38,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [925783841] [2021-11-12 23:11:38,288 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:38,289 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:38,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-12 23:11:38,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088914611] [2021-11-12 23:11:38,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:38,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:11:38,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:38,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:11:38,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:11:38,293 INFO L87 Difference]: Start difference. First operand 422 states and 1217 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:38,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:38,504 INFO L93 Difference]: Finished difference Result 476 states and 1316 transitions. [2021-11-12 23:11:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 23:11:38,505 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 15 [2021-11-12 23:11:38,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:38,508 INFO L225 Difference]: With dead ends: 476 [2021-11-12 23:11:38,509 INFO L226 Difference]: Without dead ends: 476 [2021-11-12 23:11:38,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:11:38,510 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 199 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:38,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 18 Invalid, 144 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [47 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 95.80ms Time] [2021-11-12 23:11:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-12 23:11:38,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 283. [2021-11-12 23:11:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 3.00354609929078) internal successors, (847), 282 states have internal predecessors, (847), 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) [2021-11-12 23:11:38,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 847 transitions. [2021-11-12 23:11:38,553 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 847 transitions. Word has length 15 [2021-11-12 23:11:38,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:38,553 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 847 transitions. [2021-11-12 23:11:38,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:38,554 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 847 transitions. [2021-11-12 23:11:38,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:11:38,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:38,555 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:38,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:38,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:38,782 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:38,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1350942946, now seen corresponding path program 1 times [2021-11-12 23:11:38,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:38,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862295838] [2021-11-12 23:11:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:38,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:38,801 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:38,826 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:38,826 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:38,827 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:38,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:38,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-12 23:11:38,828 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-12 23:11:38,828 WARN L234 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:38,828 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-11-12 23:11:38,842 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,842 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,843 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,843 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,843 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,843 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,843 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,843 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,844 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,844 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,844 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,844 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,844 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,845 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,845 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,845 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,845 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,845 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,846 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,846 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,846 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,846 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,846 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,847 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,847 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,847 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,847 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,847 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,848 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,848 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,848 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,848 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,848 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,848 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,849 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,849 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,849 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,849 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,849 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,850 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,850 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,850 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,850 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,850 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,851 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,851 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,851 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,851 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,851 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,851 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,852 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,852 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,852 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,852 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,852 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,852 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,853 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,853 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,853 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,853 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,854 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,854 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,854 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,854 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,855 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,855 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,855 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,855 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,855 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,855 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,856 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,856 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,856 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,856 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,856 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,856 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,857 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,857 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,857 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,857 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,857 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,858 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,858 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,858 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,858 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,858 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,859 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,859 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,859 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,859 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,859 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,859 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,860 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,860 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,860 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,860 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,860 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,861 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,861 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,861 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,861 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,861 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,862 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,862 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,862 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,862 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,862 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,862 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,863 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,863 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,863 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,863 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,863 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,864 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,864 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,864 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,864 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,864 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,865 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,865 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,865 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,865 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,866 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,866 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,866 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,867 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,867 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,867 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,867 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,867 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,868 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,868 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,868 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,869 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,869 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,870 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,870 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,870 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,870 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,870 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,871 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,871 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,871 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,872 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,872 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,872 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,873 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,873 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,873 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,873 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:38,875 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-11-12 23:11:38,876 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:38,877 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=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 [2021-11-12 23:11:38,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:38,879 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:38,879 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 94 transitions, 266 flow [2021-11-12 23:11:38,880 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 94 transitions, 266 flow [2021-11-12 23:11:38,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 266 flow [2021-11-12 23:11:39,077 INFO L129 PetriNetUnfolder]: 213/1255 cut-off events. [2021-11-12 23:11:39,077 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2021-11-12 23:11:39,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 1255 events. 213/1255 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6802 event pairs, 72 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 771. Up to 192 conditions per place. [2021-11-12 23:11:39,120 INFO L116 LiptonReduction]: Number of co-enabled transitions 3120 [2021-11-12 23:11:41,284 INFO L131 LiptonReduction]: Checked pairs total: 5000 [2021-11-12 23:11:41,285 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-11-12 23:11:41,285 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 136 flow [2021-11-12 23:11:41,319 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 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) [2021-11-12 23:11:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 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) [2021-11-12 23:11:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:41,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:41,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:41,323 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash 31174, now seen corresponding path program 1 times [2021-11-12 23:11:41,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:41,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648483471] [2021-11-12 23:11:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:41,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:41,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:41,338 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:41,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648483471] [2021-11-12 23:11:41,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648483471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:41,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:41,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:41,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330156749] [2021-11-12 23:11:41,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:41,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:41,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:41,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:41,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:41,342 INFO L87 Difference]: Start difference. First operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:41,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:41,374 INFO L93 Difference]: Finished difference Result 691 states and 2403 transitions. [2021-11-12 23:11:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:41,382 INFO L225 Difference]: With dead ends: 691 [2021-11-12 23:11:41,382 INFO L226 Difference]: Without dead ends: 691 [2021-11-12 23:11:41,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:41,383 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:41,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.30ms Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 20.37ms Time] [2021-11-12 23:11:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-11-12 23:11:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2021-11-12 23:11:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 684 states have (on average 3.513157894736842) internal successors, (2403), 690 states have internal predecessors, (2403), 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) [2021-11-12 23:11:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 2403 transitions. [2021-11-12 23:11:41,432 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 2403 transitions. Word has length 2 [2021-11-12 23:11:41,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:41,433 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 2403 transitions. [2021-11-12 23:11:41,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 2403 transitions. [2021-11-12 23:11:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:11:41,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:41,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:41,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-12 23:11:41,434 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:41,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:41,435 INFO L85 PathProgramCache]: Analyzing trace with hash 330708179, now seen corresponding path program 1 times [2021-11-12 23:11:41,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:41,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015796729] [2021-11-12 23:11:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:41,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:41,477 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:41,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015796729] [2021-11-12 23:11:41,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015796729] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:41,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592504308] [2021-11-12 23:11:41,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:41,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:41,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:41,479 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:41,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-12 23:11:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:41,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:11:41,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:41,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:41,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:41,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592504308] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:41,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1289316882] [2021-11-12 23:11:41,624 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:41,625 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:41,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-12 23:11:41,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828630532] [2021-11-12 23:11:41,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:41,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:11:41,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:41,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:11:41,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:11:41,628 INFO L87 Difference]: Start difference. First operand 691 states and 2403 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-11-12 23:11:41,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:41,740 INFO L93 Difference]: Finished difference Result 1001 states and 3255 transitions. [2021-11-12 23:11:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:11:41,741 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 7 [2021-11-12 23:11:41,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:41,751 INFO L225 Difference]: With dead ends: 1001 [2021-11-12 23:11:41,752 INFO L226 Difference]: Without dead ends: 1001 [2021-11-12 23:11:41,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:11:41,753 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 126 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.74ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:41,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 8 Invalid, 85 Unknown, 0 Unchecked, 0.74ms Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 63.20ms Time] [2021-11-12 23:11:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-11-12 23:11:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 882. [2021-11-12 23:11:41,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 876 states have (on average 3.3789954337899544) internal successors, (2960), 881 states have internal predecessors, (2960), 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) [2021-11-12 23:11:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 2960 transitions. [2021-11-12 23:11:41,798 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 2960 transitions. Word has length 7 [2021-11-12 23:11:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:41,798 INFO L470 AbstractCegarLoop]: Abstraction has 882 states and 2960 transitions. [2021-11-12 23:11:41,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-11-12 23:11:41,798 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 2960 transitions. [2021-11-12 23:11:41,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:11:41,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:41,799 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-12 23:11:41,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:42,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:42,014 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:42,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1963417120, now seen corresponding path program 1 times [2021-11-12 23:11:42,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:42,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250531005] [2021-11-12 23:11:42,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:42,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:42,048 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:42,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250531005] [2021-11-12 23:11:42,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250531005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:42,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547938854] [2021-11-12 23:11:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:42,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:42,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:42,049 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:42,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-12 23:11:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:42,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:11:42,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:42,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:42,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:42,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547938854] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:42,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [121185265] [2021-11-12 23:11:42,242 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:42,243 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:42,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2021-11-12 23:11:42,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725305089] [2021-11-12 23:11:42,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:42,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:11:42,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:11:42,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:11:42,247 INFO L87 Difference]: Start difference. First operand 882 states and 2960 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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) [2021-11-12 23:11:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:42,436 INFO L93 Difference]: Finished difference Result 1140 states and 3685 transitions. [2021-11-12 23:11:42,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 23:11:42,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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 11 [2021-11-12 23:11:42,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:42,449 INFO L225 Difference]: With dead ends: 1140 [2021-11-12 23:11:42,450 INFO L226 Difference]: Without dead ends: 1140 [2021-11-12 23:11:42,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:11:42,451 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 144 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:42,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 16 Invalid, 131 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [30 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 94.24ms Time] [2021-11-12 23:11:42,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-12 23:11:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 926. [2021-11-12 23:11:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 923 states have (on average 3.3976164680390033) internal successors, (3136), 925 states have internal predecessors, (3136), 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) [2021-11-12 23:11:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 3136 transitions. [2021-11-12 23:11:42,493 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 3136 transitions. Word has length 11 [2021-11-12 23:11:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:42,493 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 3136 transitions. [2021-11-12 23:11:42,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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) [2021-11-12 23:11:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 3136 transitions. [2021-11-12 23:11:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:11:42,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:42,496 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:42,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:42,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:42,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:42,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:42,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1998258422, now seen corresponding path program 1 times [2021-11-12 23:11:42,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:42,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797514839] [2021-11-12 23:11:42,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:42,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:42,772 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:42,772 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:42,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797514839] [2021-11-12 23:11:42,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797514839] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:42,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704741585] [2021-11-12 23:11:42,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:42,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:42,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:42,774 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:42,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-12 23:11:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:42,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:11:42,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:42,987 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:11:42,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:11:43,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704741585] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:43,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [520079379] [2021-11-12 23:11:43,107 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:43,108 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:43,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2021-11-12 23:11:43,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589910634] [2021-11-12 23:11:43,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:43,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 23:11:43,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:43,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 23:11:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:11:43,111 INFO L87 Difference]: Start difference. First operand 926 states and 3136 transitions. Second operand has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 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) [2021-11-12 23:11:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:43,346 INFO L93 Difference]: Finished difference Result 1048 states and 3429 transitions. [2021-11-12 23:11:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:11:43,347 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 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 23 [2021-11-12 23:11:43,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:43,357 INFO L225 Difference]: With dead ends: 1048 [2021-11-12 23:11:43,357 INFO L226 Difference]: Without dead ends: 1048 [2021-11-12 23:11:43,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=252, Invalid=560, Unknown=0, NotChecked=0, Total=812 [2021-11-12 23:11:43,359 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 227 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.58ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:43,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 22 Invalid, 172 Unknown, 0 Unchecked, 1.58ms Time], IncrementalHoareTripleChecker [39 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 107.60ms Time] [2021-11-12 23:11:43,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-11-12 23:11:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 571. [2021-11-12 23:11:43,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 3.4789473684210526) internal successors, (1983), 570 states have internal predecessors, (1983), 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) [2021-11-12 23:11:43,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1983 transitions. [2021-11-12 23:11:43,389 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1983 transitions. Word has length 23 [2021-11-12 23:11:43,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:43,390 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 1983 transitions. [2021-11-12 23:11:43,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 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) [2021-11-12 23:11:43,391 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1983 transitions. [2021-11-12 23:11:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:11:43,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:43,393 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:43,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:43,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-12 23:11:43,607 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash -517177115, now seen corresponding path program 1 times [2021-11-12 23:11:43,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:43,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095608846] [2021-11-12 23:11:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:43,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:43,621 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:43,639 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:43,639 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:43,640 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:43,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:43,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-12 23:11:43,640 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 23:11:43,641 WARN L234 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:43,641 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-11-12 23:11:43,650 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,650 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,650 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,651 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,651 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,651 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,651 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,651 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,651 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,651 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,652 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,652 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,652 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,652 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,652 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,652 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,653 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,654 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,654 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,655 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,655 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,655 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,655 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,655 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,655 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,657 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,657 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,657 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,657 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,657 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,657 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,657 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,658 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,658 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,658 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,658 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,658 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,658 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,658 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,660 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,660 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,660 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,660 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,660 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,660 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,660 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,661 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,661 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,661 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,661 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,661 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,661 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,661 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,662 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,662 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,662 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,662 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,662 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,662 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,663 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,663 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,663 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,663 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,663 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,663 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,663 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,664 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,664 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,664 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,664 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,664 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,664 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,664 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,665 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,665 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,665 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,665 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,665 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,665 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,666 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,666 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,666 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,666 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,666 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,666 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,666 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,667 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,667 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,667 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,667 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,667 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,667 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,667 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,668 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,668 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,668 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,668 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,668 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,668 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,669 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,669 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,669 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,669 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,669 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,669 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,670 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,670 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,670 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,670 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,670 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,670 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,671 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,671 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,671 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,671 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,671 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,671 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,672 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,672 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,672 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,672 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,672 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,673 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,673 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,673 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,673 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,673 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,674 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,674 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,674 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,674 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,674 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,675 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,675 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,675 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,675 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,675 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,676 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,676 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,676 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,676 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,677 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,677 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,677 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,677 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,677 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,678 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,678 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,678 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,678 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,678 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,679 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:43,680 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2021-11-12 23:11:43,681 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:43,681 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=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 [2021-11-12 23:11:43,682 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:43,683 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:43,683 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 101 transitions, 300 flow [2021-11-12 23:11:43,683 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 101 transitions, 300 flow [2021-11-12 23:11:43,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 300 flow [2021-11-12 23:11:44,057 INFO L129 PetriNetUnfolder]: 472/2430 cut-off events. [2021-11-12 23:11:44,057 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2021-11-12 23:11:44,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2430 events. 472/2430 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 16324 event pairs, 201 based on Foata normal form. 0/2142 useless extension candidates. Maximal degree in co-relation 1473. Up to 448 conditions per place. [2021-11-12 23:11:44,112 INFO L116 LiptonReduction]: Number of co-enabled transitions 3920 [2021-11-12 23:11:46,156 INFO L131 LiptonReduction]: Checked pairs total: 6060 [2021-11-12 23:11:46,156 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-11-12 23:11:46,157 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 32 transitions, 162 flow [2021-11-12 23:11:46,238 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 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) [2021-11-12 23:11:46,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 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) [2021-11-12 23:11:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:46,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:46,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:46,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:46,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:46,245 INFO L85 PathProgramCache]: Analyzing trace with hash 36999, now seen corresponding path program 1 times [2021-11-12 23:11:46,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:46,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743153281] [2021-11-12 23:11:46,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:46,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:46,257 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:46,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743153281] [2021-11-12 23:11:46,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743153281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:46,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:46,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:46,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821958551] [2021-11-12 23:11:46,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:46,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:46,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:46,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:46,264 INFO L87 Difference]: Start difference. First operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:46,300 INFO L93 Difference]: Finished difference Result 1401 states and 5566 transitions. [2021-11-12 23:11:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:46,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:46,316 INFO L225 Difference]: With dead ends: 1401 [2021-11-12 23:11:46,317 INFO L226 Difference]: Without dead ends: 1401 [2021-11-12 23:11:46,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:46,318 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.29ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:46,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 21.29ms Time] [2021-11-12 23:11:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2021-11-12 23:11:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2021-11-12 23:11:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1393 states have (on average 3.9956927494615937) internal successors, (5566), 1400 states have internal predecessors, (5566), 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) [2021-11-12 23:11:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 5566 transitions. [2021-11-12 23:11:46,429 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 5566 transitions. Word has length 2 [2021-11-12 23:11:46,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:46,429 INFO L470 AbstractCegarLoop]: Abstraction has 1401 states and 5566 transitions. [2021-11-12 23:11:46,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:46,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 5566 transitions. [2021-11-12 23:11:46,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:11:46,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:46,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:11:46,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-12 23:11:46,430 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:46,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:46,431 INFO L85 PathProgramCache]: Analyzing trace with hash -142706284, now seen corresponding path program 1 times [2021-11-12 23:11:46,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:46,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550240137] [2021-11-12 23:11:46,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:46,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:11:46,448 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:46,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550240137] [2021-11-12 23:11:46,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550240137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:46,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:46,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:46,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787570901] [2021-11-12 23:11:46,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:46,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:46,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:46,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:46,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:46,450 INFO L87 Difference]: Start difference. First operand 1401 states and 5566 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:46,482 INFO L93 Difference]: Finished difference Result 1394 states and 5531 transitions. [2021-11-12 23:11:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-12 23:11:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:46,499 INFO L225 Difference]: With dead ends: 1394 [2021-11-12 23:11:46,499 INFO L226 Difference]: Without dead ends: 1394 [2021-11-12 23:11:46,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:46,501 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:46,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.22ms Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 21.25ms Time] [2021-11-12 23:11:46,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-11-12 23:11:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-11-12 23:11:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1386 states have (on average 3.9906204906204907) internal successors, (5531), 1393 states have internal predecessors, (5531), 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) [2021-11-12 23:11:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5531 transitions. [2021-11-12 23:11:46,557 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5531 transitions. Word has length 6 [2021-11-12 23:11:46,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:46,558 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5531 transitions. [2021-11-12 23:11:46,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5531 transitions. [2021-11-12 23:11:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:11:46,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:46,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:46,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-12 23:11:46,561 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:46,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:46,562 INFO L85 PathProgramCache]: Analyzing trace with hash -125385246, now seen corresponding path program 1 times [2021-11-12 23:11:46,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:46,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813981688] [2021-11-12 23:11:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:46,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:46,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:46,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813981688] [2021-11-12 23:11:46,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813981688] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:46,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994283134] [2021-11-12 23:11:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:46,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:46,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:46,587 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:46,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-12 23:11:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:46,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:11:46,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:46,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:46,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994283134] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:46,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [506816655] [2021-11-12 23:11:46,727 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:46,728 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:46,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 7 [2021-11-12 23:11:46,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673468106] [2021-11-12 23:11:46,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:46,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:11:46,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:46,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:11:46,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:11:46,731 INFO L87 Difference]: Start difference. First operand 1394 states and 5531 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-11-12 23:11:46,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:46,867 INFO L93 Difference]: Finished difference Result 2047 states and 7666 transitions. [2021-11-12 23:11:46,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:11:46,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 7 [2021-11-12 23:11:46,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:46,893 INFO L225 Difference]: With dead ends: 2047 [2021-11-12 23:11:46,894 INFO L226 Difference]: Without dead ends: 2047 [2021-11-12 23:11:46,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:11:46,895 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 107 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.07ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:46,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 10 Invalid, 112 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [22 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 65.07ms Time] [2021-11-12 23:11:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2021-11-12 23:11:46,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1802. [2021-11-12 23:11:46,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1796 states have (on average 3.85913140311804) internal successors, (6931), 1801 states have internal predecessors, (6931), 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) [2021-11-12 23:11:46,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 6931 transitions. [2021-11-12 23:11:46,991 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 6931 transitions. Word has length 7 [2021-11-12 23:11:46,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:46,992 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 6931 transitions. [2021-11-12 23:11:46,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-11-12 23:11:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 6931 transitions. [2021-11-12 23:11:46,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:11:46,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:46,993 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:47,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:47,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-12 23:11:47,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:47,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:47,219 INFO L85 PathProgramCache]: Analyzing trace with hash -813758091, now seen corresponding path program 1 times [2021-11-12 23:11:47,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:47,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606125966] [2021-11-12 23:11:47,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:47,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:47,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:47,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606125966] [2021-11-12 23:11:47,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606125966] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:47,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399157155] [2021-11-12 23:11:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:47,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:47,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:47,253 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:47,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-12 23:11:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:47,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:11:47,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:47,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:47,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399157155] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:47,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1506196917] [2021-11-12 23:11:47,448 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:47,449 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:47,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-12 23:11:47,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978095043] [2021-11-12 23:11:47,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:47,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:11:47,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:47,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:11:47,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:11:47,451 INFO L87 Difference]: Start difference. First operand 1802 states and 6931 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2021-11-12 23:11:47,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:47,560 INFO L93 Difference]: Finished difference Result 1564 states and 5974 transitions. [2021-11-12 23:11:47,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:11:47,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 15 [2021-11-12 23:11:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:47,576 INFO L225 Difference]: With dead ends: 1564 [2021-11-12 23:11:47,576 INFO L226 Difference]: Without dead ends: 1564 [2021-11-12 23:11:47,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:11:47,577 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 83 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:47,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 10 Invalid, 85 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 94.80ms Time] [2021-11-12 23:11:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2021-11-12 23:11:47,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1147. [2021-11-12 23:11:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1146 states have (on average 3.9642233856893543) internal successors, (4543), 1146 states have internal predecessors, (4543), 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) [2021-11-12 23:11:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 4543 transitions. [2021-11-12 23:11:47,624 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 4543 transitions. Word has length 15 [2021-11-12 23:11:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:47,624 INFO L470 AbstractCegarLoop]: Abstraction has 1147 states and 4543 transitions. [2021-11-12 23:11:47,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2021-11-12 23:11:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 4543 transitions. [2021-11-12 23:11:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:11:47,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:47,628 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:47,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:47,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-12 23:11:47,842 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:47,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash 655513361, now seen corresponding path program 1 times [2021-11-12 23:11:47,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:47,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450693576] [2021-11-12 23:11:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:47,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:47,864 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:47,902 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:47,902 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:47,903 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:47,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:47,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-12 23:11:47,905 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 23:11:47,905 WARN L234 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:47,905 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-11-12 23:11:47,917 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,918 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,918 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,918 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,918 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,918 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,918 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,919 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,919 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,919 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,919 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,919 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,919 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,919 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,920 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,920 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,920 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,920 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,920 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,920 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,921 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,921 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,921 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,921 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,921 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,921 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,921 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,922 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,922 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,922 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,922 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,922 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,922 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,922 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,923 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,923 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,923 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,923 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,923 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,923 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,924 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,924 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,924 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,924 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,924 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,925 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,926 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,926 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,926 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,927 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,928 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,928 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,928 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,928 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,928 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,928 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,928 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,929 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,929 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,930 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,930 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,930 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,930 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,930 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,930 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,930 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,931 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,931 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,931 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,931 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,931 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,931 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,931 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,932 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,932 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,932 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,932 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,932 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,932 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,932 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,933 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,933 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,933 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,933 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,933 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,933 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,933 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,934 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,934 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,934 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,934 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,934 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,934 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,934 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,935 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,935 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,935 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,935 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,935 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,935 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,936 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,936 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,936 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,936 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,936 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,936 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,936 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,938 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,938 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,938 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,938 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,938 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,938 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,938 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,939 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,939 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,940 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,940 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,940 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,940 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,940 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,940 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,941 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,941 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,941 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,941 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,941 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,942 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,942 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,943 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,943 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,944 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,944 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,944 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,944 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,944 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,945 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,945 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,945 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,946 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,946 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,946 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,946 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,946 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,947 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,947 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,947 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,948 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,948 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,948 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,948 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,949 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,949 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:47,951 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-12 23:11:47,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:47,953 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=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 [2021-11-12 23:11:47,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:47,954 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:47,955 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 108 transitions, 336 flow [2021-11-12 23:11:47,955 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 108 transitions, 336 flow [2021-11-12 23:11:47,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions, 336 flow [2021-11-12 23:11:48,764 INFO L129 PetriNetUnfolder]: 1051/4821 cut-off events. [2021-11-12 23:11:48,764 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2021-11-12 23:11:48,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5906 conditions, 4821 events. 1051/4821 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 38849 event pairs, 522 based on Foata normal form. 0/4273 useless extension candidates. Maximal degree in co-relation 2913. Up to 1024 conditions per place. [2021-11-12 23:11:48,875 INFO L116 LiptonReduction]: Number of co-enabled transitions 4800 [2021-11-12 23:11:50,948 INFO L131 LiptonReduction]: Checked pairs total: 7070 [2021-11-12 23:11:50,949 INFO L133 LiptonReduction]: Total number of compositions: 78 [2021-11-12 23:11:50,949 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 35 transitions, 190 flow [2021-11-12 23:11:51,120 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 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) [2021-11-12 23:11:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 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) [2021-11-12 23:11:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:51,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:51,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:51,127 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash 43183, now seen corresponding path program 1 times [2021-11-12 23:11:51,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:51,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193964034] [2021-11-12 23:11:51,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:51,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:51,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:51,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193964034] [2021-11-12 23:11:51,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193964034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:51,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:51,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:51,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306807322] [2021-11-12 23:11:51,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:51,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:51,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:51,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:51,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:51,153 INFO L87 Difference]: Start difference. First operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:51,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:51,228 INFO L93 Difference]: Finished difference Result 2809 states and 12542 transitions. [2021-11-12 23:11:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:51,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:51,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:51,270 INFO L225 Difference]: With dead ends: 2809 [2021-11-12 23:11:51,271 INFO L226 Difference]: Without dead ends: 2809 [2021-11-12 23:11:51,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:51,272 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.56ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:51,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 47.56ms Time] [2021-11-12 23:11:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2021-11-12 23:11:51,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2809. [2021-11-12 23:11:51,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2800 states have (on average 4.479285714285714) internal successors, (12542), 2808 states have internal predecessors, (12542), 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) [2021-11-12 23:11:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 12542 transitions. [2021-11-12 23:11:51,383 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 12542 transitions. Word has length 2 [2021-11-12 23:11:51,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:51,384 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 12542 transitions. [2021-11-12 23:11:51,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 12542 transitions. [2021-11-12 23:11:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:11:51,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:51,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:11:51,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-12 23:11:51,385 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:51,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:51,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1249579925, now seen corresponding path program 1 times [2021-11-12 23:11:51,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:51,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892566028] [2021-11-12 23:11:51,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:51,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:11:51,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:51,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892566028] [2021-11-12 23:11:51,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892566028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:51,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:51,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:51,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166804872] [2021-11-12 23:11:51,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:51,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:51,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:51,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:51,404 INFO L87 Difference]: Start difference. First operand 2809 states and 12542 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:51,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:51,450 INFO L93 Difference]: Finished difference Result 2801 states and 12498 transitions. [2021-11-12 23:11:51,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:51,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-12 23:11:51,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:51,468 INFO L225 Difference]: With dead ends: 2801 [2021-11-12 23:11:51,469 INFO L226 Difference]: Without dead ends: 2801 [2021-11-12 23:11:51,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:51,470 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:51,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.23ms Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 24.12ms Time] [2021-11-12 23:11:51,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-11-12 23:11:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2021-11-12 23:11:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2792 states have (on average 4.476361031518625) internal successors, (12498), 2800 states have internal predecessors, (12498), 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) [2021-11-12 23:11:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 12498 transitions. [2021-11-12 23:11:51,708 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 12498 transitions. Word has length 6 [2021-11-12 23:11:51,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:51,708 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 12498 transitions. [2021-11-12 23:11:51,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:11:51,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 12498 transitions. [2021-11-12 23:11:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:11:51,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:51,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:51,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-12 23:11:51,710 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:51,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:51,710 INFO L85 PathProgramCache]: Analyzing trace with hash 85973101, now seen corresponding path program 1 times [2021-11-12 23:11:51,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:51,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3408092] [2021-11-12 23:11:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:51,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:51,730 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:51,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3408092] [2021-11-12 23:11:51,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3408092] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:51,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451643307] [2021-11-12 23:11:51,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:51,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:51,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:51,732 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:51,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-12 23:11:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:51,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:11:51,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:51,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:51,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451643307] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:51,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [682706105] [2021-11-12 23:11:51,887 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:51,888 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:51,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-12 23:11:51,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594104811] [2021-11-12 23:11:51,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:51,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:11:51,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:51,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:11:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:11:51,891 INFO L87 Difference]: Start difference. First operand 2801 states and 12498 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:52,048 INFO L93 Difference]: Finished difference Result 4152 states and 17593 transitions. [2021-11-12 23:11:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:11:52,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 7 [2021-11-12 23:11:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:52,072 INFO L225 Difference]: With dead ends: 4152 [2021-11-12 23:11:52,072 INFO L226 Difference]: Without dead ends: 4152 [2021-11-12 23:11:52,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:11:52,074 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 184 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:52,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 7 Invalid, 102 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [31 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 64.69ms Time] [2021-11-12 23:11:52,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2021-11-12 23:11:52,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3652. [2021-11-12 23:11:52,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3645 states have (on average 4.3465020576131685) internal successors, (15843), 3651 states have internal predecessors, (15843), 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) [2021-11-12 23:11:52,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 15843 transitions. [2021-11-12 23:11:52,323 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 15843 transitions. Word has length 7 [2021-11-12 23:11:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:52,324 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 15843 transitions. [2021-11-12 23:11:52,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:11:52,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 15843 transitions. [2021-11-12 23:11:52,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:11:52,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:52,325 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:52,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:52,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:52,550 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:52,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash -822367698, now seen corresponding path program 1 times [2021-11-12 23:11:52,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:52,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77333921] [2021-11-12 23:11:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:52,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:52,588 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:52,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77333921] [2021-11-12 23:11:52,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77333921] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:52,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099927212] [2021-11-12 23:11:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:52,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:52,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:52,590 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:52,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-12 23:11:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:52,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:11:52,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:52,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:11:52,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099927212] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:52,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [742295410] [2021-11-12 23:11:52,817 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:52,817 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:52,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-12 23:11:52,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582858939] [2021-11-12 23:11:52,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:52,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:11:52,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:11:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:11:52,819 INFO L87 Difference]: Start difference. First operand 3652 states and 15843 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:53,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:53,049 INFO L93 Difference]: Finished difference Result 4902 states and 20626 transitions. [2021-11-12 23:11:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:11:53,050 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 15 [2021-11-12 23:11:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:53,147 INFO L225 Difference]: With dead ends: 4902 [2021-11-12 23:11:53,148 INFO L226 Difference]: Without dead ends: 4902 [2021-11-12 23:11:53,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2021-11-12 23:11:53,149 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 305 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:53,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 13 Invalid, 168 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 100.68ms Time] [2021-11-12 23:11:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2021-11-12 23:11:53,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 3986. [2021-11-12 23:11:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3986 states, 3982 states have (on average 4.36815670517328) internal successors, (17394), 3985 states have internal predecessors, (17394), 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) [2021-11-12 23:11:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 17394 transitions. [2021-11-12 23:11:53,353 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 17394 transitions. Word has length 15 [2021-11-12 23:11:53,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:53,353 INFO L470 AbstractCegarLoop]: Abstraction has 3986 states and 17394 transitions. [2021-11-12 23:11:53,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:11:53,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 17394 transitions. [2021-11-12 23:11:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:11:53,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:53,358 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:53,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:53,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-12 23:11:53,578 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:53,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:53,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1691468589, now seen corresponding path program 1 times [2021-11-12 23:11:53,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:53,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817303788] [2021-11-12 23:11:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:53,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:53,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:53,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817303788] [2021-11-12 23:11:53,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817303788] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:11:53,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304622751] [2021-11-12 23:11:53,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:53,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:11:53,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:53,658 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:11:53,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-12 23:11:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:53,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:11:53,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:11:53,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:11:53,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304622751] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:11:53,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1943195747] [2021-11-12 23:11:53,941 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:11:53,942 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:11:53,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-12 23:11:53,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468698020] [2021-11-12 23:11:53,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:11:53,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:11:53,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:11:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:11:53,944 INFO L87 Difference]: Start difference. First operand 3986 states and 17394 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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) [2021-11-12 23:11:54,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:54,363 INFO L93 Difference]: Finished difference Result 4592 states and 19475 transitions. [2021-11-12 23:11:54,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 23:11:54,363 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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 27 [2021-11-12 23:11:54,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:54,395 INFO L225 Difference]: With dead ends: 4592 [2021-11-12 23:11:54,395 INFO L226 Difference]: Without dead ends: 4592 [2021-11-12 23:11:54,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=342, Invalid=780, Unknown=0, NotChecked=0, Total=1122 [2021-11-12 23:11:54,397 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 487 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.29ms SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:54,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 21 Invalid, 241 Unknown, 0 Unchecked, 2.29ms Time], IncrementalHoareTripleChecker [75 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 154.26ms Time] [2021-11-12 23:11:54,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2021-11-12 23:11:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 2299. [2021-11-12 23:11:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2298 states have (on average 4.455613577023499) internal successors, (10239), 2298 states have internal predecessors, (10239), 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) [2021-11-12 23:11:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 10239 transitions. [2021-11-12 23:11:54,513 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 10239 transitions. Word has length 27 [2021-11-12 23:11:54,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:54,514 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 10239 transitions. [2021-11-12 23:11:54,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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) [2021-11-12 23:11:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 10239 transitions. [2021-11-12 23:11:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-12 23:11:54,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:54,521 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:54,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:54,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-12 23:11:54,746 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:54,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:54,747 INFO L85 PathProgramCache]: Analyzing trace with hash -591820522, now seen corresponding path program 1 times [2021-11-12 23:11:54,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:54,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751195967] [2021-11-12 23:11:54,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:54,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:54,759 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:11:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:11:54,789 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:11:54,789 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:11:54,790 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:11:54,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:11:54,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-12 23:11:54,790 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-12 23:11:54,791 WARN L234 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:11:54,791 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2021-11-12 23:11:54,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,804 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,805 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,805 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,805 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,805 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,806 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,807 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,807 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,808 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,808 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,808 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,809 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,809 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,809 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,809 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,809 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,809 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,810 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,810 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,810 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,810 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,811 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,811 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,811 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,812 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,812 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,812 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,812 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,812 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,812 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,812 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,813 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,813 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,814 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,814 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,814 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,814 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,814 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,814 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,814 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,815 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,815 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,815 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,815 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,815 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,815 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,815 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,816 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,817 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,817 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,817 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,817 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,817 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,817 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,817 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,818 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,818 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,818 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,818 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,818 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,818 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,818 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,819 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,820 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,820 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,820 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,820 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,820 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,820 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,820 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,821 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,821 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,821 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,821 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,821 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,821 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,821 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,823 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,823 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,823 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,823 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,823 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,823 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,823 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,824 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,824 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,824 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,824 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,824 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,824 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,824 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,825 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,825 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,826 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,826 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,826 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,826 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,827 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,828 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,828 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,828 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,828 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,828 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,828 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,828 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,829 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,829 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,829 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,829 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,829 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,830 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,830 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,830 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,830 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,830 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,830 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,830 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,831 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,831 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,831 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,831 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,832 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,832 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,832 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,833 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,833 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,833 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,833 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,833 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,834 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,834 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,834 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,834 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,835 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,835 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,835 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,835 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,835 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,835 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,836 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,836 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,836 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,836 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,836 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,837 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,837 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,837 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,837 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,837 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,838 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,838 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,838 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,838 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,838 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,839 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,839 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,839 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,839 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,840 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,840 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,840 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,840 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,841 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,841 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,841 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,841 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:54,843 INFO L148 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-11-12 23:11:54,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:54,847 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=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 [2021-11-12 23:11:54,847 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:11:54,848 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:54,849 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 115 transitions, 374 flow [2021-11-12 23:11:54,849 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 115 transitions, 374 flow [2021-11-12 23:11:54,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 374 flow [2021-11-12 23:11:56,612 INFO L129 PetriNetUnfolder]: 2334/9708 cut-off events. [2021-11-12 23:11:56,613 INFO L130 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2021-11-12 23:11:56,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12085 conditions, 9708 events. 2334/9708 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 91119 event pairs, 1291 based on Foata normal form. 0/8644 useless extension candidates. Maximal degree in co-relation 5891. Up to 2304 conditions per place. [2021-11-12 23:11:56,976 INFO L116 LiptonReduction]: Number of co-enabled transitions 5760 [2021-11-12 23:11:59,280 INFO L131 LiptonReduction]: Checked pairs total: 10747 [2021-11-12 23:11:59,280 INFO L133 LiptonReduction]: Total number of compositions: 82 [2021-11-12 23:11:59,281 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 38 transitions, 220 flow [2021-11-12 23:11:59,510 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 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) [2021-11-12 23:11:59,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 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) [2021-11-12 23:11:59,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:11:59,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:59,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:11:59,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:59,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:59,526 INFO L85 PathProgramCache]: Analyzing trace with hash 49699, now seen corresponding path program 1 times [2021-11-12 23:11:59,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:59,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417033678] [2021-11-12 23:11:59,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:59,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:59,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:59,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417033678] [2021-11-12 23:11:59,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417033678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:59,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:59,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:59,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946907801] [2021-11-12 23:11:59,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:59,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:59,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:59,554 INFO L87 Difference]: Start difference. First operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:59,634 INFO L93 Difference]: Finished difference Result 5625 states and 27902 transitions. [2021-11-12 23:11:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:59,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:11:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:59,668 INFO L225 Difference]: With dead ends: 5625 [2021-11-12 23:11:59,668 INFO L226 Difference]: Without dead ends: 5625 [2021-11-12 23:11:59,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:59,669 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.76ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:59,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 24.76ms Time] [2021-11-12 23:11:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5625 states. [2021-11-12 23:11:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5625 to 5625. [2021-11-12 23:11:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5625 states, 5615 states have (on average 4.969189670525378) internal successors, (27902), 5624 states have internal predecessors, (27902), 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) [2021-11-12 23:11:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5625 states to 5625 states and 27902 transitions. [2021-11-12 23:11:59,889 INFO L78 Accepts]: Start accepts. Automaton has 5625 states and 27902 transitions. Word has length 2 [2021-11-12 23:11:59,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:59,890 INFO L470 AbstractCegarLoop]: Abstraction has 5625 states and 27902 transitions. [2021-11-12 23:11:59,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:11:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5625 states and 27902 transitions. [2021-11-12 23:11:59,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:11:59,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:59,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:11:59,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-12 23:11:59,891 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:11:59,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:59,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1282430947, now seen corresponding path program 1 times [2021-11-12 23:11:59,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:59,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610478919] [2021-11-12 23:11:59,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:59,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:11:59,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:59,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610478919] [2021-11-12 23:11:59,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610478919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:59,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:59,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:11:59,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662566866] [2021-11-12 23:11:59,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:59,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:59,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:59,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:59,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:59,908 INFO L87 Difference]: Start difference. First operand 5625 states and 27902 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:12:00,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:00,090 INFO L93 Difference]: Finished difference Result 5616 states and 27848 transitions. [2021-11-12 23:12:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:12:00,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-12 23:12:00,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:00,148 INFO L225 Difference]: With dead ends: 5616 [2021-11-12 23:12:00,149 INFO L226 Difference]: Without dead ends: 5616 [2021-11-12 23:12:00,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:12:00,150 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:00,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.27ms Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 27.26ms Time] [2021-11-12 23:12:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2021-11-12 23:12:00,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 5616. [2021-11-12 23:12:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5616 states, 5606 states have (on average 4.967534784159829) internal successors, (27848), 5615 states have internal predecessors, (27848), 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) [2021-11-12 23:12:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 27848 transitions. [2021-11-12 23:12:00,531 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 27848 transitions. Word has length 6 [2021-11-12 23:12:00,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:00,531 INFO L470 AbstractCegarLoop]: Abstraction has 5616 states and 27848 transitions. [2021-11-12 23:12:00,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:12:00,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 27848 transitions. [2021-11-12 23:12:00,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:12:00,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:00,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:00,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-12 23:12:00,532 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:00,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:00,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1096605118, now seen corresponding path program 1 times [2021-11-12 23:12:00,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:00,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620404693] [2021-11-12 23:12:00,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:00,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:00,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:00,552 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:00,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620404693] [2021-11-12 23:12:00,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620404693] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:00,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650468827] [2021-11-12 23:12:00,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:00,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:00,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:00,554 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:00,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-12 23:12:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:00,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:12:00,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:00,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:00,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650468827] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:00,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [495111205] [2021-11-12 23:12:00,730 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:00,732 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:00,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-12 23:12:00,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408457682] [2021-11-12 23:12:00,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:00,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:12:00,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:00,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:12:00,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:12:00,734 INFO L87 Difference]: Start difference. First operand 5616 states and 27848 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:12:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:01,016 INFO L93 Difference]: Finished difference Result 8369 states and 39609 transitions. [2021-11-12 23:12:01,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:12:01,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 7 [2021-11-12 23:12:01,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:01,098 INFO L225 Difference]: With dead ends: 8369 [2021-11-12 23:12:01,098 INFO L226 Difference]: Without dead ends: 8369 [2021-11-12 23:12:01,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:12:01,099 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 200 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.15ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.21ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:01,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 10 Invalid, 143 Unknown, 0 Unchecked, 1.15ms Time], IncrementalHoareTripleChecker [30 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 82.21ms Time] [2021-11-12 23:12:01,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8369 states. [2021-11-12 23:12:01,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8369 to 7358. [2021-11-12 23:12:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7358 states, 7350 states have (on average 4.838775510204082) internal successors, (35565), 7357 states have internal predecessors, (35565), 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) [2021-11-12 23:12:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7358 states to 7358 states and 35565 transitions. [2021-11-12 23:12:01,457 INFO L78 Accepts]: Start accepts. Automaton has 7358 states and 35565 transitions. Word has length 7 [2021-11-12 23:12:01,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:01,457 INFO L470 AbstractCegarLoop]: Abstraction has 7358 states and 35565 transitions. [2021-11-12 23:12:01,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-12 23:12:01,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7358 states and 35565 transitions. [2021-11-12 23:12:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:12:01,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:01,458 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:01,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-12 23:12:01,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-12 23:12:01,666 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:01,667 INFO L85 PathProgramCache]: Analyzing trace with hash -444773348, now seen corresponding path program 1 times [2021-11-12 23:12:01,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:01,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337464603] [2021-11-12 23:12:01,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:01,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:01,704 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:01,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337464603] [2021-11-12 23:12:01,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337464603] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:01,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309359907] [2021-11-12 23:12:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:01,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:01,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:01,719 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:01,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-12 23:12:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:01,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:12:01,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:12:01,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:12:01,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309359907] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:01,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1495285297] [2021-11-12 23:12:01,934 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:01,935 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:01,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-12 23:12:01,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213469556] [2021-11-12 23:12:01,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:01,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:12:01,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:01,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:12:01,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:12:01,941 INFO L87 Difference]: Start difference. First operand 7358 states and 35565 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:12:02,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:02,348 INFO L93 Difference]: Finished difference Result 10004 states and 46968 transitions. [2021-11-12 23:12:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:12:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 15 [2021-11-12 23:12:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:02,385 INFO L225 Difference]: With dead ends: 10004 [2021-11-12 23:12:02,385 INFO L226 Difference]: Without dead ends: 10004 [2021-11-12 23:12:02,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2021-11-12 23:12:02,386 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 196 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.35ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.49ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:02,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 20 Invalid, 199 Unknown, 0 Unchecked, 1.35ms Time], IncrementalHoareTripleChecker [37 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 125.49ms Time] [2021-11-12 23:12:02,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10004 states. [2021-11-12 23:12:02,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10004 to 8130. [2021-11-12 23:12:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8130 states, 8125 states have (on average 4.857230769230769) internal successors, (39465), 8129 states have internal predecessors, (39465), 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) [2021-11-12 23:12:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8130 states to 8130 states and 39465 transitions. [2021-11-12 23:12:02,799 INFO L78 Accepts]: Start accepts. Automaton has 8130 states and 39465 transitions. Word has length 15 [2021-11-12 23:12:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:02,799 INFO L470 AbstractCegarLoop]: Abstraction has 8130 states and 39465 transitions. [2021-11-12 23:12:02,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-11-12 23:12:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 8130 states and 39465 transitions. [2021-11-12 23:12:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:12:02,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:02,802 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:02,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-12 23:12:03,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-12 23:12:03,018 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:03,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:03,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1584177803, now seen corresponding path program 1 times [2021-11-12 23:12:03,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:03,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316140517] [2021-11-12 23:12:03,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:03,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:03,076 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:03,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316140517] [2021-11-12 23:12:03,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316140517] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:03,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061830042] [2021-11-12 23:12:03,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:03,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:03,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:03,095 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:03,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-12 23:12:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:03,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:12:03,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:12:03,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:12:03,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061830042] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:03,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1168062608] [2021-11-12 23:12:03,434 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:03,435 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:03,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-12 23:12:03,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856704055] [2021-11-12 23:12:03,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:03,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:12:03,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:03,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:12:03,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:12:03,437 INFO L87 Difference]: Start difference. First operand 8130 states and 39465 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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) [2021-11-12 23:12:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:03,845 INFO L93 Difference]: Finished difference Result 9364 states and 44336 transitions. [2021-11-12 23:12:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-12 23:12:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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 27 [2021-11-12 23:12:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:03,877 INFO L225 Difference]: With dead ends: 9364 [2021-11-12 23:12:03,877 INFO L226 Difference]: Without dead ends: 9364 [2021-11-12 23:12:03,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2021-11-12 23:12:03,879 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 567 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.98ms SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 148.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:03,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 20 Invalid, 253 Unknown, 0 Unchecked, 2.98ms Time], IncrementalHoareTripleChecker [83 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 148.19ms Time] [2021-11-12 23:12:04,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9364 states. [2021-11-12 23:12:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9364 to 4603. [2021-11-12 23:12:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4602 states have (on average 4.950673620165146) internal successors, (22783), 4602 states have internal predecessors, (22783), 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) [2021-11-12 23:12:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 22783 transitions. [2021-11-12 23:12:04,208 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 22783 transitions. Word has length 27 [2021-11-12 23:12:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:04,208 INFO L470 AbstractCegarLoop]: Abstraction has 4603 states and 22783 transitions. [2021-11-12 23:12:04,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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) [2021-11-12 23:12:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 22783 transitions. [2021-11-12 23:12:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-12 23:12:04,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:04,221 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:04,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:04,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:04,441 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:04,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1103562257, now seen corresponding path program 1 times [2021-11-12 23:12:04,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:04,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610267983] [2021-11-12 23:12:04,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:04,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:12:04,456 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:12:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:12:04,479 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:12:04,479 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:12:04,480 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:12:04,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:12:04,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-12 23:12:04,481 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-12 23:12:04,481 WARN L234 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:12:04,481 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2021-11-12 23:12:04,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,494 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,494 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,495 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,495 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,495 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,495 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,495 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,495 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,495 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,496 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,496 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,496 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,496 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,497 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,497 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,497 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,497 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,497 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,497 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,497 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,498 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,499 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,499 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,499 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,499 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,499 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,499 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,500 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,501 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,501 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,501 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,501 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,501 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,501 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,501 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,502 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,502 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,502 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,502 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,502 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,502 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,502 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,503 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,503 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,503 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,503 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,503 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,503 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,503 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,504 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,505 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,505 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,506 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,506 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,506 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,506 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,506 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,506 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,506 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,507 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,507 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,507 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,507 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,507 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,508 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,508 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,508 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,508 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,508 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,508 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,508 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,509 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,510 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,510 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,510 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,511 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,511 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,511 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,511 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,511 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,511 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,511 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,512 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,512 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,512 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,512 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,512 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,512 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,512 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,513 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,513 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,513 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,513 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,513 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,513 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,513 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,514 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,515 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,515 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,515 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,515 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,515 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,515 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,515 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,516 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,516 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,516 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,516 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,516 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,516 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,516 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,517 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,517 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,517 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,517 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,517 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,517 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,517 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,518 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,519 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,519 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,519 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,519 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,519 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,519 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,519 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,520 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,520 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,520 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,520 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,520 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,520 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,520 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,521 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,521 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,521 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,521 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,521 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,521 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,521 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,522 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,522 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,522 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,522 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,522 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,522 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,523 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,523 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,523 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,523 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,523 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,524 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,524 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,524 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,524 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,524 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,525 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,525 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,525 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,525 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,525 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,526 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,526 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,526 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,526 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,526 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,526 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,527 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,527 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,527 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,527 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,528 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,528 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,528 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,528 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,528 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,529 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,529 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,529 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,529 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,529 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,530 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,530 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,530 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,530 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,530 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,531 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,531 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,531 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,531 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,531 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:04,534 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-11-12 23:12:04,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:12:04,536 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=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 [2021-11-12 23:12:04,536 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:12:04,538 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:12:04,538 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 122 transitions, 414 flow [2021-11-12 23:12:04,538 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 122 transitions, 414 flow [2021-11-12 23:12:04,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 414 flow [2021-11-12 23:12:07,658 INFO L129 PetriNetUnfolder]: 5153/19715 cut-off events. [2021-11-12 23:12:07,658 INFO L130 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2021-11-12 23:12:07,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24921 conditions, 19715 events. 5153/19715 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 207422 event pairs, 3084 based on Foata normal form. 0/17623 useless extension candidates. Maximal degree in co-relation 12070. Up to 5120 conditions per place. [2021-11-12 23:12:08,272 INFO L116 LiptonReduction]: Number of co-enabled transitions 6800 [2021-11-12 23:12:10,235 INFO L131 LiptonReduction]: Checked pairs total: 11854 [2021-11-12 23:12:10,236 INFO L133 LiptonReduction]: Total number of compositions: 86 [2021-11-12 23:12:10,236 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 41 transitions, 252 flow [2021-11-12 23:12:10,867 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 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) [2021-11-12 23:12:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 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) [2021-11-12 23:12:10,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:12:10,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:10,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:12:10,882 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:10,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:10,883 INFO L85 PathProgramCache]: Analyzing trace with hash 56575, now seen corresponding path program 1 times [2021-11-12 23:12:10,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:10,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146526448] [2021-11-12 23:12:10,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:10,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:10,898 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:10,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146526448] [2021-11-12 23:12:10,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146526448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:12:10,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:12:10,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:12:10,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620436591] [2021-11-12 23:12:10,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:12:10,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:12:10,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:10,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:12:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:12:10,920 INFO L87 Difference]: Start difference. First operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:12:11,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:11,068 INFO L93 Difference]: Finished difference Result 11247 states and 61373 transitions. [2021-11-12 23:12:11,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:12:11,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:12:11,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:11,148 INFO L225 Difference]: With dead ends: 11247 [2021-11-12 23:12:11,148 INFO L226 Difference]: Without dead ends: 11247 [2021-11-12 23:12:11,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:12:11,149 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:11,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.27ms Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 30.81ms Time] [2021-11-12 23:12:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2021-11-12 23:12:11,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11247. [2021-11-12 23:12:11,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11247 states, 11236 states have (on average 5.462175151299395) internal successors, (61373), 11246 states have internal predecessors, (61373), 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) [2021-11-12 23:12:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11247 states to 11247 states and 61373 transitions. [2021-11-12 23:12:11,875 INFO L78 Accepts]: Start accepts. Automaton has 11247 states and 61373 transitions. Word has length 2 [2021-11-12 23:12:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:11,875 INFO L470 AbstractCegarLoop]: Abstraction has 11247 states and 61373 transitions. [2021-11-12 23:12:11,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:12:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 11247 states and 61373 transitions. [2021-11-12 23:12:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:12:11,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:11,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:11,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-12 23:12:11,876 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:11,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1725891420, now seen corresponding path program 1 times [2021-11-12 23:12:11,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:11,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507007637] [2021-11-12 23:12:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:11,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:11,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:11,960 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:11,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507007637] [2021-11-12 23:12:11,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507007637] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:11,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134916584] [2021-11-12 23:12:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:11,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:11,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:11,974 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:11,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-12 23:12:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:12,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:12:12,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:12,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:12,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134916584] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:12,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [176659873] [2021-11-12 23:12:12,136 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:12,138 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:12,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-12 23:12:12,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710216321] [2021-11-12 23:12:12,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:12,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:12:12,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:12,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:12:12,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:12:12,140 INFO L87 Difference]: Start difference. First operand 11247 states and 61373 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-11-12 23:12:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:12,402 INFO L93 Difference]: Finished difference Result 16813 states and 87925 transitions. [2021-11-12 23:12:12,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:12:12,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 7 [2021-11-12 23:12:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:12,479 INFO L225 Difference]: With dead ends: 16813 [2021-11-12 23:12:12,479 INFO L226 Difference]: Without dead ends: 16813 [2021-11-12 23:12:12,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:12:12,480 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 186 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:12,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 10 Invalid, 142 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [19 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 79.40ms Time] [2021-11-12 23:12:12,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16813 states. [2021-11-12 23:12:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16813 to 14778. [2021-11-12 23:12:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14778 states, 14768 states have (on average 5.333965330444204) internal successors, (78772), 14777 states have internal predecessors, (78772), 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) [2021-11-12 23:12:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14778 states to 14778 states and 78772 transitions. [2021-11-12 23:12:13,275 INFO L78 Accepts]: Start accepts. Automaton has 14778 states and 78772 transitions. Word has length 7 [2021-11-12 23:12:13,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:13,275 INFO L470 AbstractCegarLoop]: Abstraction has 14778 states and 78772 transitions. [2021-11-12 23:12:13,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-11-12 23:12:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 14778 states and 78772 transitions. [2021-11-12 23:12:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:12:13,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:13,275 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-12 23:12:13,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:13,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:13,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:13,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash 44551944, now seen corresponding path program 1 times [2021-11-12 23:12:13,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:13,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670311848] [2021-11-12 23:12:13,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:13,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:13,500 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:13,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670311848] [2021-11-12 23:12:13,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670311848] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:13,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616763534] [2021-11-12 23:12:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:13,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:13,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:13,502 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:13,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-12 23:12:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:13,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:12:13,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:13,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:13,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616763534] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:13,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [948277531] [2021-11-12 23:12:13,690 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:13,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:13,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2021-11-12 23:12:13,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294515641] [2021-11-12 23:12:13,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:13,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:12:13,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:13,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:12:13,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:12:13,693 INFO L87 Difference]: Start difference. First operand 14778 states and 78772 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-11-12 23:12:13,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:13,921 INFO L93 Difference]: Finished difference Result 14726 states and 78616 transitions. [2021-11-12 23:12:13,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:12:13,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 11 [2021-11-12 23:12:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:14,012 INFO L225 Difference]: With dead ends: 14726 [2021-11-12 23:12:14,012 INFO L226 Difference]: Without dead ends: 14726 [2021-11-12 23:12:14,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:12:14,016 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 70 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:14,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 10 Invalid, 118 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 83.26ms Time] [2021-11-12 23:12:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14726 states. [2021-11-12 23:12:14,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14726 to 14726. [2021-11-12 23:12:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14726 states, 14720 states have (on average 5.340760869565218) internal successors, (78616), 14725 states have internal predecessors, (78616), 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) [2021-11-12 23:12:14,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14726 states to 14726 states and 78616 transitions. [2021-11-12 23:12:14,839 INFO L78 Accepts]: Start accepts. Automaton has 14726 states and 78616 transitions. Word has length 11 [2021-11-12 23:12:14,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:14,839 INFO L470 AbstractCegarLoop]: Abstraction has 14726 states and 78616 transitions. [2021-11-12 23:12:14,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-11-12 23:12:14,839 INFO L276 IsEmpty]: Start isEmpty. Operand 14726 states and 78616 transitions. [2021-11-12 23:12:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:12:14,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:14,841 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:14,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:15,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:15,046 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:15,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:15,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1744349056, now seen corresponding path program 1 times [2021-11-12 23:12:15,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:15,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407695474] [2021-11-12 23:12:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:15,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:15,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:15,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407695474] [2021-11-12 23:12:15,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407695474] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:15,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627865834] [2021-11-12 23:12:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:15,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:15,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:15,127 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:15,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-12 23:12:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:15,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:12:15,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:15,323 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:12:15,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:12:15,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627865834] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:15,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [282029880] [2021-11-12 23:12:15,445 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:15,446 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:15,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-12 23:12:15,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211906695] [2021-11-12 23:12:15,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:15,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:12:15,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:15,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:12:15,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:12:15,449 INFO L87 Difference]: Start difference. First operand 14726 states and 78616 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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) [2021-11-12 23:12:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:15,959 INFO L93 Difference]: Finished difference Result 18810 states and 98404 transitions. [2021-11-12 23:12:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-12 23:12:15,959 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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 27 [2021-11-12 23:12:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:16,033 INFO L225 Difference]: With dead ends: 18810 [2021-11-12 23:12:16,034 INFO L226 Difference]: Without dead ends: 18810 [2021-11-12 23:12:16,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2021-11-12 23:12:16,035 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 597 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.55ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.87ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:16,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 23 Invalid, 297 Unknown, 0 Unchecked, 2.55ms Time], IncrementalHoareTripleChecker [87 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 174.87ms Time] [2021-11-12 23:12:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18810 states. [2021-11-12 23:12:16,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18810 to 15494. [2021-11-12 23:12:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15494 states, 15492 states have (on average 5.3630260779757295) internal successors, (83084), 15493 states have internal predecessors, (83084), 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) [2021-11-12 23:12:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15494 states to 15494 states and 83084 transitions. [2021-11-12 23:12:16,989 INFO L78 Accepts]: Start accepts. Automaton has 15494 states and 83084 transitions. Word has length 27 [2021-11-12 23:12:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:16,989 INFO L470 AbstractCegarLoop]: Abstraction has 15494 states and 83084 transitions. [2021-11-12 23:12:16,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 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) [2021-11-12 23:12:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 15494 states and 83084 transitions. [2021-11-12 23:12:17,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 23:12:17,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:17,030 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:17,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:17,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-12 23:12:17,246 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:17,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:17,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1867615106, now seen corresponding path program 1 times [2021-11-12 23:12:17,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:17,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220642863] [2021-11-12 23:12:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:17,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:17,370 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:17,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220642863] [2021-11-12 23:12:17,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220642863] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:17,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537778842] [2021-11-12 23:12:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:17,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:17,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:17,378 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:17,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-12 23:12:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:17,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:12:17,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:17,656 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-12 23:12:17,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:17,810 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-12 23:12:17,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537778842] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:17,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2021046507] [2021-11-12 23:12:17,811 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:17,812 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:17,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 20 [2021-11-12 23:12:17,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201758807] [2021-11-12 23:12:17,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:17,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-12 23:12:17,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:17,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-12 23:12:17,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2021-11-12 23:12:17,814 INFO L87 Difference]: Start difference. First operand 15494 states and 83084 transitions. Second operand has 22 states, 21 states have (on average 4.190476190476191) internal successors, (88), 21 states have internal predecessors, (88), 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) [2021-11-12 23:12:18,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:18,818 INFO L93 Difference]: Finished difference Result 18940 states and 99061 transitions. [2021-11-12 23:12:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-12 23:12:18,819 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.190476190476191) internal successors, (88), 21 states have internal predecessors, (88), 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 43 [2021-11-12 23:12:18,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:18,909 INFO L225 Difference]: With dead ends: 18940 [2021-11-12 23:12:18,909 INFO L226 Difference]: Without dead ends: 18940 [2021-11-12 23:12:18,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=549, Invalid=1173, Unknown=0, NotChecked=0, Total=1722 [2021-11-12 23:12:18,911 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 997 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 178.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.37ms SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 215.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:18,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 19 Invalid, 300 Unknown, 0 Unchecked, 4.37ms Time], IncrementalHoareTripleChecker [111 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 215.12ms Time] [2021-11-12 23:12:18,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18940 states. [2021-11-12 23:12:19,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18940 to 9211. [2021-11-12 23:12:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9211 states, 9210 states have (on average 5.447882736156352) internal successors, (50175), 9210 states have internal predecessors, (50175), 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) [2021-11-12 23:12:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9211 states to 9211 states and 50175 transitions. [2021-11-12 23:12:19,312 INFO L78 Accepts]: Start accepts. Automaton has 9211 states and 50175 transitions. Word has length 43 [2021-11-12 23:12:19,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:19,312 INFO L470 AbstractCegarLoop]: Abstraction has 9211 states and 50175 transitions. [2021-11-12 23:12:19,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.190476190476191) internal successors, (88), 21 states have internal predecessors, (88), 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) [2021-11-12 23:12:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 9211 states and 50175 transitions. [2021-11-12 23:12:19,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 23:12:19,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:19,327 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:19,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:19,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-12 23:12:19,528 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1114723927, now seen corresponding path program 1 times [2021-11-12 23:12:19,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:19,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866463142] [2021-11-12 23:12:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:19,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:12:19,542 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:12:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:12:19,563 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:12:19,563 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:12:19,563 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-12 23:12:19,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:12:19,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-12 23:12:19,564 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-12 23:12:19,565 WARN L234 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-12 23:12:19,565 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2021-11-12 23:12:19,581 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,581 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,581 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,581 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,581 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,582 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,582 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,582 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,582 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,582 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,582 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,582 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,583 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,583 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,583 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,583 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,583 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,583 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,584 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,584 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,584 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,584 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,584 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,584 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,584 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,585 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,585 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,585 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,585 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,585 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,585 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,585 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,586 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,586 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,586 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,586 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,586 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,586 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,586 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,587 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,587 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,587 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,587 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,587 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,587 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,588 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,588 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,588 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,588 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,588 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,588 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,588 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,589 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,589 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,589 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,589 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,589 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,589 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,589 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,590 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,590 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,591 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,591 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,591 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,591 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,591 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,591 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,591 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,592 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,592 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,592 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,592 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,592 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,592 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,592 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,593 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,593 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,594 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,594 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,594 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,594 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,594 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,594 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,595 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,595 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,595 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,595 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,595 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,595 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,595 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,596 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,596 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,596 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,596 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,596 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,596 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,596 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,598 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,598 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,598 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,598 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,598 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,598 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,598 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,599 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,599 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,599 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,599 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,599 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,599 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,599 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,600 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,600 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,600 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,600 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,600 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,600 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,600 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,601 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,601 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,601 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,602 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,602 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,603 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,603 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,603 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,603 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,603 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,603 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,603 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,604 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,604 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,604 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,605 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,606 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,606 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,606 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,606 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,606 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,606 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,606 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,607 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,607 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,607 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,607 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,608 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,608 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,608 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,609 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,609 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,609 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,609 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,609 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,609 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,609 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,610 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,610 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,610 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,611 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,611 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,611 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,612 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,613 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,613 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,614 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,614 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,614 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,614 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,614 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,615 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,615 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,615 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,615 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,615 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,616 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,616 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,616 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,616 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,616 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,617 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,617 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,617 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,617 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,617 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,617 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,618 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,618 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,618 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,619 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,619 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,619 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,620 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,620 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,620 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,620 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,620 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,621 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,621 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,621 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,621 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,621 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,621 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,622 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,622 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,622 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,623 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,623 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,623 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,623 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,623 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,624 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,624 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,624 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,624 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,624 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:12:19,626 INFO L148 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2021-11-12 23:12:19,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:12:19,627 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=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 [2021-11-12 23:12:19,627 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:12:19,629 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:12:19,629 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 129 transitions, 456 flow [2021-11-12 23:12:19,629 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 129 transitions, 456 flow [2021-11-12 23:12:19,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 129 transitions, 456 flow [2021-11-12 23:12:26,005 INFO L129 PetriNetUnfolder]: 11300/40218 cut-off events. [2021-11-12 23:12:26,005 INFO L130 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2021-11-12 23:12:26,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51582 conditions, 40218 events. 11300/40218 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 472350 event pairs, 7181 based on Foata normal form. 0/36074 useless extension candidates. Maximal degree in co-relation 24906. Up to 11264 conditions per place. [2021-11-12 23:12:27,438 INFO L116 LiptonReduction]: Number of co-enabled transitions 7920 [2021-11-12 23:12:29,821 INFO L131 LiptonReduction]: Checked pairs total: 13114 [2021-11-12 23:12:29,821 INFO L133 LiptonReduction]: Total number of compositions: 90 [2021-11-12 23:12:29,821 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 286 flow [2021-11-12 23:12:31,103 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 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) [2021-11-12 23:12:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 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) [2021-11-12 23:12:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-12 23:12:31,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:31,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-12 23:12:31,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:31,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:31,144 INFO L85 PathProgramCache]: Analyzing trace with hash 63813, now seen corresponding path program 1 times [2021-11-12 23:12:31,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:31,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541573112] [2021-11-12 23:12:31,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:31,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:31,166 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:31,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541573112] [2021-11-12 23:12:31,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541573112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:12:31,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:12:31,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:12:31,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592189717] [2021-11-12 23:12:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:12:31,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:12:31,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:12:31,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:12:31,220 INFO L87 Difference]: Start difference. First operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:12:31,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:31,505 INFO L93 Difference]: Finished difference Result 22521 states and 134142 transitions. [2021-11-12 23:12:31,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:12:31,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-12 23:12:31,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:31,633 INFO L225 Difference]: With dead ends: 22521 [2021-11-12 23:12:31,633 INFO L226 Difference]: Without dead ends: 22521 [2021-11-12 23:12:31,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:12:31,634 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:31,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.28ms Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 33.89ms Time] [2021-11-12 23:12:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2021-11-12 23:12:32,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 22521. [2021-11-12 23:12:32,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22521 states, 22509 states have (on average 5.95948287351726) internal successors, (134142), 22520 states have internal predecessors, (134142), 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) [2021-11-12 23:12:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22521 states to 22521 states and 134142 transitions. [2021-11-12 23:12:32,647 INFO L78 Accepts]: Start accepts. Automaton has 22521 states and 134142 transitions. Word has length 2 [2021-11-12 23:12:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:32,647 INFO L470 AbstractCegarLoop]: Abstraction has 22521 states and 134142 transitions. [2021-11-12 23:12:32,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-12 23:12:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 22521 states and 134142 transitions. [2021-11-12 23:12:32,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:12:32,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:32,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:12:32,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-12 23:12:32,648 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:32,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:32,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1132489220, now seen corresponding path program 1 times [2021-11-12 23:12:32,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:32,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846141012] [2021-11-12 23:12:32,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:32,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:12:32,660 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:32,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846141012] [2021-11-12 23:12:32,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846141012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:12:32,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:12:32,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:12:32,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351886284] [2021-11-12 23:12:32,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:12:32,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:12:32,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:12:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:12:32,663 INFO L87 Difference]: Start difference. First operand 22521 states and 134142 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:12:33,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:33,393 INFO L93 Difference]: Finished difference Result 22510 states and 134065 transitions. [2021-11-12 23:12:33,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:12:33,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-12 23:12:33,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:33,607 INFO L225 Difference]: With dead ends: 22510 [2021-11-12 23:12:33,608 INFO L226 Difference]: Without dead ends: 22510 [2021-11-12 23:12:33,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:12:33,608 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.09ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:33,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.20ms Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 32.09ms Time] [2021-11-12 23:12:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22510 states. [2021-11-12 23:12:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22510 to 22510. [2021-11-12 23:12:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22510 states, 22498 states have (on average 5.9589741310338695) internal successors, (134065), 22509 states have internal predecessors, (134065), 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) [2021-11-12 23:12:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22510 states to 22510 states and 134065 transitions. [2021-11-12 23:12:35,051 INFO L78 Accepts]: Start accepts. Automaton has 22510 states and 134065 transitions. Word has length 6 [2021-11-12 23:12:35,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:35,051 INFO L470 AbstractCegarLoop]: Abstraction has 22510 states and 134065 transitions. [2021-11-12 23:12:35,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-12 23:12:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 22510 states and 134065 transitions. [2021-11-12 23:12:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:12:35,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:35,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:35,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-12 23:12:35,053 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:35,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash -747425236, now seen corresponding path program 1 times [2021-11-12 23:12:35,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:35,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369596459] [2021-11-12 23:12:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:35,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:35,087 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:35,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369596459] [2021-11-12 23:12:35,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369596459] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:35,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409674168] [2021-11-12 23:12:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:35,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:35,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:35,102 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:35,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-12 23:12:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:35,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:12:35,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:35,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:35,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409674168] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:35,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [151151545] [2021-11-12 23:12:35,273 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:35,274 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:35,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2021-11-12 23:12:35,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284333899] [2021-11-12 23:12:35,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:35,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:12:35,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:35,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:12:35,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:12:35,276 INFO L87 Difference]: Start difference. First operand 22510 states and 134065 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-12 23:12:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:35,533 INFO L93 Difference]: Finished difference Result 22499 states and 134043 transitions. [2021-11-12 23:12:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:12:35,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 7 [2021-11-12 23:12:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:35,669 INFO L225 Difference]: With dead ends: 22499 [2021-11-12 23:12:35,669 INFO L226 Difference]: Without dead ends: 22499 [2021-11-12 23:12:35,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:12:35,670 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:35,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 8 Invalid, 103 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 67.32ms Time] [2021-11-12 23:12:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22499 states. [2021-11-12 23:12:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22499 to 22499. [2021-11-12 23:12:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22490 states have (on average 5.960115606936416) internal successors, (134043), 22498 states have internal predecessors, (134043), 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) [2021-11-12 23:12:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 134043 transitions. [2021-11-12 23:12:37,045 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 134043 transitions. Word has length 7 [2021-11-12 23:12:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:37,046 INFO L470 AbstractCegarLoop]: Abstraction has 22499 states and 134043 transitions. [2021-11-12 23:12:37,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-12 23:12:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 134043 transitions. [2021-11-12 23:12:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 23:12:37,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:37,047 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:37,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:37,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:37,247 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:37,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:37,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1213946771, now seen corresponding path program 1 times [2021-11-12 23:12:37,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:37,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509879650] [2021-11-12 23:12:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:37,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:37,287 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:12:37,287 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:37,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509879650] [2021-11-12 23:12:37,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509879650] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:37,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566271410] [2021-11-12 23:12:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:37,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:37,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:37,290 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:37,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-12 23:12:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:37,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:12:37,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:12:37,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:12:37,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566271410] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:37,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [587820463] [2021-11-12 23:12:37,578 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:37,578 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:37,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-12 23:12:37,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116868160] [2021-11-12 23:12:37,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:37,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:12:37,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:37,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:12:37,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:12:37,581 INFO L87 Difference]: Start difference. First operand 22499 states and 134043 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-11-12 23:12:38,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:38,062 INFO L93 Difference]: Finished difference Result 33690 states and 193045 transitions. [2021-11-12 23:12:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:12:38,062 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 19 [2021-11-12 23:12:38,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:38,271 INFO L225 Difference]: With dead ends: 33690 [2021-11-12 23:12:38,271 INFO L226 Difference]: Without dead ends: 33690 [2021-11-12 23:12:38,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:12:38,272 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 258 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.63ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:38,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 6 Invalid, 105 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [17 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 71.63ms Time] [2021-11-12 23:12:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33690 states. [2021-11-12 23:12:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33690 to 29612. [2021-11-12 23:12:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29612 states, 29603 states have (on average 5.831908928149174) internal successors, (172642), 29611 states have internal predecessors, (172642), 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) [2021-11-12 23:12:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29612 states to 29612 states and 172642 transitions. [2021-11-12 23:12:39,954 INFO L78 Accepts]: Start accepts. Automaton has 29612 states and 172642 transitions. Word has length 19 [2021-11-12 23:12:39,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:39,954 INFO L470 AbstractCegarLoop]: Abstraction has 29612 states and 172642 transitions. [2021-11-12 23:12:39,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-11-12 23:12:39,954 INFO L276 IsEmpty]: Start isEmpty. Operand 29612 states and 172642 transitions. [2021-11-12 23:12:39,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 23:12:39,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:39,955 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:39,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:40,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:40,156 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:40,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash -647955055, now seen corresponding path program 1 times [2021-11-12 23:12:40,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:40,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093632280] [2021-11-12 23:12:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:40,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:40,203 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:40,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093632280] [2021-11-12 23:12:40,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093632280] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:40,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443197610] [2021-11-12 23:12:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:40,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:40,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:40,205 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:40,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-12 23:12:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:40,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:12:40,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:40,386 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:12:40,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:12:40,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443197610] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:40,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [434192779] [2021-11-12 23:12:40,449 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:40,449 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:40,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2021-11-12 23:12:40,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928004770] [2021-11-12 23:12:40,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:40,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:12:40,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:12:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:12:40,450 INFO L87 Difference]: Start difference. First operand 29612 states and 172642 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2021-11-12 23:12:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:41,546 INFO L93 Difference]: Finished difference Result 40598 states and 230879 transitions. [2021-11-12 23:12:41,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 23:12:41,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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 19 [2021-11-12 23:12:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:41,751 INFO L225 Difference]: With dead ends: 40598 [2021-11-12 23:12:41,751 INFO L226 Difference]: Without dead ends: 40598 [2021-11-12 23:12:41,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2021-11-12 23:12:41,752 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 274 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.22ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:41,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 20 Invalid, 235 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [48 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 179.22ms Time] [2021-11-12 23:12:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40598 states. [2021-11-12 23:12:43,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40598 to 32998. [2021-11-12 23:12:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32998 states, 32992 states have (on average 5.848660281280311) internal successors, (192959), 32997 states have internal predecessors, (192959), 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) [2021-11-12 23:12:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32998 states to 32998 states and 192959 transitions. [2021-11-12 23:12:43,323 INFO L78 Accepts]: Start accepts. Automaton has 32998 states and 192959 transitions. Word has length 19 [2021-11-12 23:12:43,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:43,323 INFO L470 AbstractCegarLoop]: Abstraction has 32998 states and 192959 transitions. [2021-11-12 23:12:43,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2021-11-12 23:12:43,323 INFO L276 IsEmpty]: Start isEmpty. Operand 32998 states and 192959 transitions. [2021-11-12 23:12:43,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:12:43,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:43,326 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:43,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:43,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:43,527 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 23:12:43,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:43,527 INFO L85 PathProgramCache]: Analyzing trace with hash 656578110, now seen corresponding path program 1 times [2021-11-12 23:12:43,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:43,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125550620] [2021-11-12 23:12:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:43,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:43,603 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:43,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125550620] [2021-11-12 23:12:43,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125550620] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:12:43,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591834652] [2021-11-12 23:12:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:43,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:12:43,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:43,612 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:12:43,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82646453-dc12-4a42-b661-393cc54a0ba4/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-12 23:12:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:43,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:12:43,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:43,841 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-12 23:12:43,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-12 23:12:43,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591834652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:12:43,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1365827867] [2021-11-12 23:12:43,945 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:12:43,945 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:12:43,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 16 [2021-11-12 23:12:43,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921137368] [2021-11-12 23:12:43,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:12:43,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:12:43,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:43,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:12:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:12:43,947 INFO L87 Difference]: Start difference. First operand 32998 states and 192959 transitions. Second operand has 18 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 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) [2021-11-12 23:12:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:45,386 INFO L93 Difference]: Finished difference Result 41168 states and 236638 transitions. [2021-11-12 23:12:45,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-12 23:12:45,386 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 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 31 [2021-11-12 23:12:45,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:45,638 INFO L225 Difference]: With dead ends: 41168 [2021-11-12 23:12:45,638 INFO L226 Difference]: Without dead ends: 41168 [2021-11-12 23:12:45,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2021-11-12 23:12:45,639 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 555 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.91ms SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168.28ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:45,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 26 Invalid, 315 Unknown, 0 Unchecked, 1.91ms Time], IncrementalHoareTripleChecker [76 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 168.28ms Time] [2021-11-12 23:12:45,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41168 states.