./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_lamport.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lamport.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:31:30,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:31:30,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:31:30,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:31:30,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:31:30,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:31:30,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:31:30,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:31:30,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:31:30,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:31:30,321 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:31:30,321 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:31:30,322 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:31:30,326 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:31:30,327 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:31:30,327 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:31:30,329 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:31:30,333 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:31:30,334 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:31:30,335 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:31:30,336 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:31:30,337 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:31:30,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:31:30,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:31:30,339 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:31:30,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:31:30,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:31:30,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:31:30,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:31:30,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:31:30,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:31:30,343 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:31:30,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:31:30,344 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:31:30,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:31:30,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:31:30,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:31:30,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:30,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:31:30,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:31:30,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:31:30,347 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:31:30,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:31:30,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:31:30,348 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:31:30,348 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:31:30,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:31:30,349 INFO L153 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_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 [2023-11-23 21:31:30,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:31:30,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:31:30,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:31:30,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:31:30,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:31:30,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/seq-pthread/cs_lamport.i [2023-11-23 21:31:34,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:31:34,384 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:31:34,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/sv-benchmarks/c/seq-pthread/cs_lamport.i [2023-11-23 21:31:34,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/data/fda678157/55ee02f71f4e466ea844da78204815d6/FLAG4f80c4f60 [2023-11-23 21:31:34,425 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/data/fda678157/55ee02f71f4e466ea844da78204815d6 [2023-11-23 21:31:34,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:31:34,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:31:34,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:34,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:31:34,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:31:34,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:34" (1/1) ... [2023-11-23 21:31:34,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed5a808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:34, skipping insertion in model container [2023-11-23 21:31:34,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:34" (1/1) ... [2023-11-23 21:31:34,507 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:34,862 WARN L240 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_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2023-11-23 21:31:34,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:35,028 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:31:35,097 WARN L240 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_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2023-11-23 21:31:35,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:35,229 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:31:35,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35 WrapperNode [2023-11-23 21:31:35,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:35,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:35,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:31:35,231 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:31:35,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,345 INFO L138 Inliner]: procedures = 145, calls = 351, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 469 [2023-11-23 21:31:35,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:35,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:31:35,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:31:35,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:31:35,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:31:35,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:31:35,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:31:35,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:31:35,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (1/1) ... [2023-11-23 21:31:35,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:35,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:35,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:31:35,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:31:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:31:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:31:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:31:35,613 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:31:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:31:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:31:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:31:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-23 21:31:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-23 21:31:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:31:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-23 21:31:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-23 21:31:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-23 21:31:35,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-23 21:31:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:31:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:31:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-23 21:31:35,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-23 21:31:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:31:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:31:35,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:31:35,853 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:31:35,857 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:31:38,765 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:31:38,955 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:31:38,955 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:31:38,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:38 BoogieIcfgContainer [2023-11-23 21:31:38,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:31:38,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:31:38,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:31:38,964 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:31:38,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:31:34" (1/3) ... [2023-11-23 21:31:38,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc3b7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:38, skipping insertion in model container [2023-11-23 21:31:38,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:35" (2/3) ... [2023-11-23 21:31:38,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc3b7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:38, skipping insertion in model container [2023-11-23 21:31:38,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:38" (3/3) ... [2023-11-23 21:31:38,968 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lamport.i [2023-11-23 21:31:38,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:31:38,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:31:39,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:31:39,066 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2aab8234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:31:39,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:31:39,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 59 states have internal predecessors, (72), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-23 21:31:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:31:39,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:39,094 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:39,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:39,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1106702987, now seen corresponding path program 1 times [2023-11-23 21:31:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:39,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015706903] [2023-11-23 21:31:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:39,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:31:40,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:31:40,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015706903] [2023-11-23 21:31:40,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015706903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:40,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:40,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:31:40,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481890701] [2023-11-23 21:31:40,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:40,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:31:40,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:31:40,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:31:40,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:40,479 INFO L87 Difference]: Start difference. First operand has 101 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 59 states have internal predecessors, (72), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:31:42,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:44,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:44,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:44,811 INFO L93 Difference]: Finished difference Result 201 states and 287 transitions. [2023-11-23 21:31:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:31:44,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 98 [2023-11-23 21:31:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:44,831 INFO L225 Difference]: With dead ends: 201 [2023-11-23 21:31:44,831 INFO L226 Difference]: Without dead ends: 101 [2023-11-23 21:31:44,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:44,842 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:44,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 256 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2023-11-23 21:31:44,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-23 21:31:44,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2023-11-23 21:31:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 58 states have (on average 1.206896551724138) internal successors, (70), 58 states have internal predecessors, (70), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-23 21:31:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2023-11-23 21:31:44,934 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 98 [2023-11-23 21:31:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:44,935 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2023-11-23 21:31:44,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:31:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2023-11-23 21:31:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-23 21:31:44,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:44,950 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:44,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:31:44,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:44,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:44,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1920767161, now seen corresponding path program 1 times [2023-11-23 21:31:44,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:44,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104353554] [2023-11-23 21:31:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:44,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:31:45,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:31:45,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104353554] [2023-11-23 21:31:45,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104353554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:45,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:45,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:31:45,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446903912] [2023-11-23 21:31:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:45,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:31:45,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:31:45,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:31:45,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:45,660 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:31:47,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:49,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:49,865 INFO L93 Difference]: Finished difference Result 199 states and 284 transitions. [2023-11-23 21:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:31:49,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 100 [2023-11-23 21:31:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:49,868 INFO L225 Difference]: With dead ends: 199 [2023-11-23 21:31:49,868 INFO L226 Difference]: Without dead ends: 101 [2023-11-23 21:31:49,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:49,871 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:49,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 255 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2023-11-23 21:31:49,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-23 21:31:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-23 21:31:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 59 states have internal predecessors, (71), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-23 21:31:49,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2023-11-23 21:31:49,887 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 100 [2023-11-23 21:31:49,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:49,887 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2023-11-23 21:31:49,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:31:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2023-11-23 21:31:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-23 21:31:49,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:49,890 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:49,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:31:49,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:49,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 12835656, now seen corresponding path program 1 times [2023-11-23 21:31:49,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:49,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634779517] [2023-11-23 21:31:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:31:50,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:31:50,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634779517] [2023-11-23 21:31:50,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634779517] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:31:50,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971733744] [2023-11-23 21:31:50,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:50,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:31:50,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:50,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:31:50,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e971a37-9298-4ca5-bfb0-7a1880fb3a7a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:31:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:51,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:31:51,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:31:51,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:31:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:31:51,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971733744] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:31:51,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1167411025] [2023-11-23 21:31:51,472 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2023-11-23 21:31:51,473 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:31:51,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:31:51,482 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:31:51,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:32:23,066 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:32:28,145 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse29 (+ 32 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse32 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse35 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 28)) (.cse38 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse41 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 24)) (.cse43 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12)) (.cse37 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse28 (+ |c_~#__CS_thread_lockedon~0.offset| 32)) (.cse31 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse42 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse22 (+ 8 |c_~#__CS_thread_status~0.offset|)) (.cse9 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse3 (+ 7 |c_~#__CS_thread_status~0.offset|)) (.cse6 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse8 (+ 6 |c_~#__CS_thread_status~0.offset|)) (.cse18 (+ 3 |c_~#__CS_thread_status~0.offset|)) (.cse34 (+ |c_~#__CS_thread_lockedon~0.offset| 28)) (.cse40 (+ |c_~#__CS_thread_lockedon~0.offset| 24)) (.cse1 (+ 8 |c_~#X~0.offset|)) (.cse19 (+ 4 |c_~#X~0.offset|)) (.cse15 (+ |c_~#b2~0.offset| 8)) (.cse21 (+ |c_~#b2~0.offset| 4)) (.cse17 (+ |c_~#b1~0.offset| 8)) (.cse20 (+ |c_~#b1~0.offset| 4)) (.cse13 (+ 8 |c_~#y~0.offset|)) (.cse11 (+ |c_~#y~0.offset| 4)) (.cse24 (+ 8 |c_~#x~0.offset|)) (.cse26 (+ 4 |c_~#x~0.offset|))) (and (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem74#1|) (exists ((|v_#memory_$Pointer$.base_139| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_141| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_273| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_140| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_149| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_138| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_137| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_148| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_147| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_136| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_135| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_146| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_134| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_133| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_144| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_143| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_132| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_142| (Array Int (Array Int Int)))) (let ((.cse2 (select |v_#memory_$Pointer$.base_137| |c_~#__CS_thread_status~0.base|)) (.cse5 (select |v_#memory_$Pointer$.base_145| |c_~#__CS_thread_status~0.base|)) (.cse4 (select |v_#memory_$Pointer$.base_138| |c_~#__CS_thread_status~0.base|)) (.cse12 (select |v_#memory_$Pointer$.base_133| |c_~#y~0.base|)) (.cse7 (select |v_#memory_$Pointer$.base_143| |c_~#__CS_thread_status~0.base|)) (.cse0 (select |v_#memory_$Pointer$.base_141| |c_~#X~0.base|)) (.cse16 (select |v_#memory_$Pointer$.base_132| |c_~#b1~0.base|)) (.cse14 (select |v_#memory_$Pointer$.base_147| |c_~#b2~0.base|)) (.cse10 (select |v_#memory_$Pointer$.base_140| |c_~#__CS_thread_status~0.base|)) (.cse23 (select |v_#memory_$Pointer$.base_136| |c_~#x~0.base|))) (and (= (store |v_#memory_$Pointer$.base_141| |c_~#X~0.base| (store .cse0 .cse1 (select (select |v_#memory_$Pointer$.base_148| |c_~#X~0.base|) .cse1))) |v_#memory_$Pointer$.base_148|) (= (store |v_#memory_$Pointer$.base_137| |c_~#__CS_thread_status~0.base| (store .cse2 .cse3 (select .cse4 .cse3))) |v_#memory_$Pointer$.base_138|) (= (store |v_#memory_$Pointer$.base_145| |c_~#__CS_thread_status~0.base| (store .cse5 .cse6 (select .cse2 .cse6))) |v_#memory_$Pointer$.base_137|) (= (store |v_#memory_$Pointer$.base_143| |c_~#__CS_thread_status~0.base| (store .cse7 .cse8 (select .cse5 .cse8))) |v_#memory_$Pointer$.base_145|) (= (store |v_#memory_$Pointer$.base_138| |c_~#__CS_thread_status~0.base| (store .cse4 .cse9 (select .cse10 .cse9))) |v_#memory_$Pointer$.base_140|) (= (store |v_#memory_$Pointer$.base_134| |c_~#y~0.base| (store (select |v_#memory_$Pointer$.base_134| |c_~#y~0.base|) .cse11 (select .cse12 .cse11))) |v_#memory_$Pointer$.base_133|) (= (store |v_#memory_$Pointer$.base_133| |c_~#y~0.base| (store .cse12 .cse13 (select (select |v_#memory_$Pointer$.base_135| |c_~#y~0.base|) .cse13))) |v_#memory_$Pointer$.base_135|) (= (store |v_#memory_$Pointer$.base_147| |c_~#b2~0.base| (store .cse14 .cse15 (select (select |v_#memory_$Pointer$.base_149| |c_~#b2~0.base|) .cse15))) |v_#memory_$Pointer$.base_149|) (= |v_#memory_$Pointer$.base_142| (store |v_#memory_$Pointer$.base_132| |c_~#b1~0.base| (store .cse16 .cse17 (select (select |v_#memory_$Pointer$.base_142| |c_~#b1~0.base|) .cse17)))) (= (store |v_#memory_$Pointer$.base_273| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_273| |c_~#__CS_thread_status~0.base|) .cse18 (select .cse7 .cse18))) |v_#memory_$Pointer$.base_143|) (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_146| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_146| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.base_149| |c_~#X~0.base| (store (select |v_#memory_$Pointer$.base_149| |c_~#X~0.base|) .cse19 (select .cse0 .cse19))) |v_#memory_$Pointer$.base_141|) (= |v_#memory_$Pointer$.base_132| (store |v_#memory_$Pointer$.base_135| |c_~#b1~0.base| (store (select |v_#memory_$Pointer$.base_135| |c_~#b1~0.base|) .cse20 (select .cse16 .cse20)))) (= (store |v_#memory_$Pointer$.base_148| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_148| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_144| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_144|) (= (store |v_#memory_$Pointer$.base_142| |c_~#b2~0.base| (store (select |v_#memory_$Pointer$.base_142| |c_~#b2~0.base|) .cse21 (select .cse14 .cse21))) |v_#memory_$Pointer$.base_147|) (= (store |v_#memory_$Pointer$.base_140| |c_~#__CS_thread_status~0.base| (store .cse10 .cse22 (select (select |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_status~0.base|) .cse22))) |v_#memory_$Pointer$.base_139|) (= (store |v_#memory_$Pointer$.base_136| |c_~#x~0.base| (store .cse23 .cse24 (select (select |v_#memory_$Pointer$.base_134| |c_~#x~0.base|) .cse24))) |v_#memory_$Pointer$.base_134|) (= |v_#memory_$Pointer$.base_146| (store |v_#memory_$Pointer$.base_144| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_144| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_146| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|)))) (= (let ((.cse25 (store |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_lockedon~0.base| (let ((.cse27 (let ((.cse30 (let ((.cse33 (let ((.cse36 (let ((.cse39 (store (select |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_lockedon~0.base|) .cse42 (select (select |v_#memory_$Pointer$.base_139| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse43)))) (store .cse39 .cse40 (select (select (store |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_lockedon~0.base| .cse39) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse41))))) (store .cse36 .cse37 (select (select (store |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_lockedon~0.base| .cse36) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse38))))) (store .cse33 .cse34 (select (select (store |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_lockedon~0.base| .cse33) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse35))))) (store .cse30 .cse31 (select (select (store |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_lockedon~0.base| .cse30) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse32))))) (store .cse27 .cse28 (select (select (store |v_#memory_$Pointer$.base_139| |c_~#__CS_thread_lockedon~0.base| .cse27) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse29)))))) (store .cse25 |c_~#x~0.base| (store (select .cse25 |c_~#x~0.base|) .cse26 (select .cse23 .cse26)))) |v_#memory_$Pointer$.base_136|)))) (exists ((v_~__CS_thread~0.base_40 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_40 0 |#funAddr~main_thread.base|))) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (exists ((|v_#memory_$Pointer$.offset_137| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_148| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_149| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_138| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_139| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_140| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_141| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_273| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_142| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_132| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_143| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_133| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_144| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_134| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_146| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_135| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_147| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_136| (Array Int (Array Int Int)))) (let ((.cse44 (select |v_#memory_$Pointer$.offset_142| |c_~#__CS_thread_status~0.base|)) (.cse47 (select |v_#memory_$Pointer$.offset_149| |c_~#b2~0.base|)) (.cse58 (select |v_#memory_$Pointer$.offset_147| |c_~#X~0.base|)) (.cse46 (select |v_#memory_$Pointer$.offset_134| |c_~#y~0.base|)) (.cse50 (select |v_#memory_$Pointer$.offset_136| |c_~#x~0.base|)) (.cse56 (select |v_#memory_$Pointer$.offset_132| |c_~#__CS_thread_status~0.base|)) (.cse45 (select |v_#memory_$Pointer$.offset_144| |c_~#__CS_thread_status~0.base|)) (.cse59 (select |v_#memory_$Pointer$.offset_133| |c_~#__CS_thread_status~0.base|)) (.cse48 (select |v_#memory_$Pointer$.offset_140| |c_~#b1~0.base|)) (.cse57 (select |v_#memory_$Pointer$.offset_137| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.offset_144| (store |v_#memory_$Pointer$.offset_142| |c_~#__CS_thread_status~0.base| (store .cse44 .cse8 (select .cse45 .cse8)))) (= (store |v_#memory_$Pointer$.offset_135| |c_~#y~0.base| (store (select |v_#memory_$Pointer$.offset_135| |c_~#y~0.base|) .cse11 (select .cse46 .cse11))) |v_#memory_$Pointer$.offset_134|) (= |v_#memory_$Pointer$.offset_148| (store |v_#memory_$Pointer$.offset_149| |c_~#b2~0.base| (store .cse47 .cse15 (select (select |v_#memory_$Pointer$.offset_148| |c_~#b2~0.base|) .cse15)))) (= |v_#memory_$Pointer$.offset_142| (store |v_#memory_$Pointer$.offset_273| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_273| |c_~#__CS_thread_status~0.base|) .cse18 (select .cse44 .cse18)))) (= (store |v_#memory_$Pointer$.offset_141| |c_~#b1~0.base| (store (select |v_#memory_$Pointer$.offset_141| |c_~#b1~0.base|) .cse20 (select .cse48 .cse20))) |v_#memory_$Pointer$.offset_140|) (= |v_#memory_$Pointer$.offset_136| (let ((.cse49 (store |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_lockedon~0.base| (let ((.cse51 (let ((.cse52 (let ((.cse53 (let ((.cse54 (let ((.cse55 (store (select |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_lockedon~0.base|) .cse42 (select (select |v_#memory_$Pointer$.offset_138| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse43)))) (store .cse55 .cse40 (select (select (store |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_lockedon~0.base| .cse55) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse41))))) (store .cse54 .cse37 (select (select (store |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_lockedon~0.base| .cse54) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse38))))) (store .cse53 .cse34 (select (select (store |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_lockedon~0.base| .cse53) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse35))))) (store .cse52 .cse31 (select (select (store |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_lockedon~0.base| .cse52) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse32))))) (store .cse51 .cse28 (select (select (store |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_lockedon~0.base| .cse51) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse29)))))) (store .cse49 |c_~#x~0.base| (store (select .cse49 |c_~#x~0.base|) .cse26 (select .cse50 .cse26))))) (= (store |v_#memory_$Pointer$.offset_132| |c_~#__CS_thread_status~0.base| (store .cse56 .cse9 (select .cse57 .cse9))) |v_#memory_$Pointer$.offset_137|) (= (store |v_#memory_$Pointer$.offset_139| |c_~#b2~0.base| (store (select |v_#memory_$Pointer$.offset_139| |c_~#b2~0.base|) .cse21 (select .cse47 .cse21))) |v_#memory_$Pointer$.offset_149|) (= (store |v_#memory_$Pointer$.offset_148| |c_~#X~0.base| (store (select |v_#memory_$Pointer$.offset_148| |c_~#X~0.base|) .cse19 (select .cse58 .cse19))) |v_#memory_$Pointer$.offset_147|) (= |v_#memory_$Pointer$.offset_143| (store |v_#memory_$Pointer$.offset_146| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_146| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_143| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_147| |c_~#X~0.base| (store .cse58 .cse1 (select (select |v_#memory_$Pointer$.offset_146| |c_~#X~0.base|) .cse1))) |v_#memory_$Pointer$.offset_146|) (= (store |v_#memory_$Pointer$.offset_145| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_145| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.offset|) (= (store |v_#memory_$Pointer$.offset_134| |c_~#y~0.base| (store .cse46 .cse13 (select (select |v_#memory_$Pointer$.offset_141| |c_~#y~0.base|) .cse13))) |v_#memory_$Pointer$.offset_141|) (= (store |v_#memory_$Pointer$.offset_143| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_143| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_145| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_145|) (= (store |v_#memory_$Pointer$.offset_136| |c_~#x~0.base| (store .cse50 .cse24 (select (select |v_#memory_$Pointer$.offset_135| |c_~#x~0.base|) .cse24))) |v_#memory_$Pointer$.offset_135|) (= (store |v_#memory_$Pointer$.offset_133| |c_~#__CS_thread_status~0.base| (store .cse59 .cse3 (select .cse56 .cse3))) |v_#memory_$Pointer$.offset_132|) (= |v_#memory_$Pointer$.offset_133| (store |v_#memory_$Pointer$.offset_144| |c_~#__CS_thread_status~0.base| (store .cse45 .cse6 (select .cse59 .cse6)))) (= (store |v_#memory_$Pointer$.offset_140| |c_~#b1~0.base| (store .cse48 .cse17 (select (select |v_#memory_$Pointer$.offset_139| |c_~#b1~0.base|) .cse17))) |v_#memory_$Pointer$.offset_139|) (= |v_#memory_$Pointer$.offset_138| (store |v_#memory_$Pointer$.offset_137| |c_~#__CS_thread_status~0.base| (store .cse57 .cse22 (select (select |v_#memory_$Pointer$.offset_138| |c_~#__CS_thread_status~0.base|) .cse22))))))) (exists ((|v_#memory_int_118| (Array Int (Array Int Int))) (|v_#memory_int_170| (Array Int (Array Int Int))) (|v_#memory_int_114| (Array Int (Array Int Int))) (|v_#memory_int_115| (Array Int (Array Int Int))) (|v_#memory_int_116| (Array Int (Array Int Int))) (|v_#memory_int_117| (Array Int (Array Int Int))) (|v_#memory_int_113| (Array Int (Array Int Int)))) (let ((.cse62 (select |v_#memory_int_115| |c_~#__CS_thread_lockedon~0.base|)) (.cse61 (select |v_#memory_int_117| |c_~#__CS_thread_lockedon~0.base|)) (.cse63 (select |v_#memory_int_116| |c_~#__CS_thread_lockedon~0.base|)) (.cse65 (select |v_#memory_int_113| |c_~#__CS_thread_lockedon~0.base|)) (.cse60 (select |v_#memory_int_118| |c_~#__CS_thread_lockedon~0.base|))) (and (= (store |v_#memory_int_118| |c_~#__CS_thread_lockedon~0.base| (store .cse60 .cse37 (select .cse61 .cse37))) |v_#memory_int_117|) (= (store |v_#memory_int_115| |c_~#__CS_thread_lockedon~0.base| (store .cse62 .cse28 (select (select |v_#memory_int_114| |c_~#__CS_thread_lockedon~0.base|) .cse28))) |v_#memory_int_114|) (= (store |v_#memory_int_116| |c_~#__CS_thread_lockedon~0.base| (store .cse63 .cse31 (select .cse62 .cse31))) |v_#memory_int_115|) (= |v_#memory_int_113| (let ((.cse64 (store |v_#memory_int_170| |c_~#__CS_thread_status~0.base| (let ((.cse66 (let ((.cse67 (let ((.cse68 (let ((.cse69 (let ((.cse70 (store (select |v_#memory_int_170| |c_~#__CS_thread_status~0.base|) .cse18 (select (select |v_#memory_int_170| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 3))))) (store .cse70 .cse8 (select (select (store |v_#memory_int_170| |c_~#__CS_thread_status~0.base| .cse70) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 6)))))) (store .cse69 .cse6 (select (select (store |v_#memory_int_170| |c_~#__CS_thread_status~0.base| .cse69) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 4)))))) (store .cse68 .cse3 (select (select (store |v_#memory_int_170| |c_~#__CS_thread_status~0.base| .cse68) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ 7 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset|)))))) (store .cse67 .cse9 (select (select (store |v_#memory_int_170| |c_~#__CS_thread_status~0.base| .cse67) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 5)))))) (store .cse66 .cse22 (select (select (store |v_#memory_int_170| |c_~#__CS_thread_status~0.base| .cse66) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 8))))))) (store .cse64 |c_~#__CS_thread_lockedon~0.base| (store (select .cse64 |c_~#__CS_thread_lockedon~0.base|) .cse42 (select .cse65 .cse42))))) (= (store |v_#memory_int_117| |c_~#__CS_thread_lockedon~0.base| (store .cse61 .cse34 (select .cse63 .cse34))) |v_#memory_int_116|) (= (store |v_#memory_int_113| |c_~#__CS_thread_lockedon~0.base| (store .cse65 .cse40 (select .cse60 .cse40))) |v_#memory_int_118|) (= |c_#memory_int| (let ((.cse71 (let ((.cse72 (let ((.cse73 (let ((.cse74 (let ((.cse76 (let ((.cse78 (let ((.cse80 (store |v_#memory_int_114| |c_~#x~0.base| (let ((.cse82 (store (select |v_#memory_int_114| |c_~#x~0.base|) .cse26 (select (select |v_#memory_int_114| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (+ 4 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|))))) (store .cse82 .cse24 (select (select (store |v_#memory_int_114| |c_~#x~0.base| .cse82) |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|))))))) (store .cse80 |c_~#y~0.base| (let ((.cse81 (store (select .cse80 |c_~#y~0.base|) .cse11 (select (select .cse80 |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.offset| 4))))) (store .cse81 .cse13 (select (select (store .cse80 |c_~#y~0.base| .cse81) |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.offset| 8)))))))) (store .cse78 |c_~#b1~0.base| (let ((.cse79 (store (select .cse78 |c_~#b1~0.base|) .cse20 (select (select .cse78 |c_ULTIMATE.start_main_~#__CS_cp_b1~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_b1~0#1.offset| 4))))) (store .cse79 .cse17 (select (select (store .cse78 |c_~#b1~0.base| .cse79) |c_ULTIMATE.start_main_~#__CS_cp_b1~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_b1~0#1.offset| 8)))))))) (store .cse76 |c_~#b2~0.base| (let ((.cse77 (store (select .cse76 |c_~#b2~0.base|) .cse21 (select (select .cse76 |c_ULTIMATE.start_main_~#__CS_cp_b2~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_b2~0#1.offset| 4))))) (store .cse77 .cse15 (select (select (store .cse76 |c_~#b2~0.base| .cse77) |c_ULTIMATE.start_main_~#__CS_cp_b2~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~#__CS_cp_b2~0#1.offset|)))))))) (store .cse74 |c_~#X~0.base| (let ((.cse75 (store (select .cse74 |c_~#X~0.base|) .cse19 (select (select .cse74 |c_ULTIMATE.start_main_~#__CS_cp_X~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_X~0#1.offset| 4))))) (store .cse75 .cse1 (select (select (store .cse74 |c_~#X~0.base| .cse75) |c_ULTIMATE.start_main_~#__CS_cp_X~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_X~0#1.offset| 8)))))))) (store .cse73 |c_~#__CS_thread_born_round~0.base| (store (select .cse73 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse72 |c_~#__CS_thread_status~0.base| (store (select .cse72 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse71 |c_~#__CS_thread_allocated~0.base| (store (select .cse71 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1))))))) (exists ((v_~__CS_thread~0.offset_40 (Array Int Int))) (= (store v_~__CS_thread~0.offset_40 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) (= c_~__CS_round~0 0) (= c_~__CS_thread_index~0 0))) is different from false [2023-11-23 21:32:28,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1167411025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:28,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:32:28,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 8 [2023-11-23 21:32:28,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185062875] [2023-11-23 21:32:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:28,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:32:28,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:28,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:32:28,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2023-11-23 21:32:28,170 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)